for each of the following described situations related to thee mean or means of a population, choose which confidence interval type best applies. a student wants to describe the mean hours spent studying on weeknights. they have a good sense the variance is 2 hours.

Answers

Answer 1

For the given situation related to the mean of a population, the best confidence interval type that applies is the T-distribution confidence interval.

Explanation:

A confidence interval is a range of values, derived from a data sample, that includes the true value of a population parameter with a particular level of confidence. It is a measure of the precision of an estimate.The type of confidence interval that is used depends on the situation or data. There are two types of confidence interval namely, the Z-distribution confidence interval and the T-distribution confidence interval. Both intervals are used to estimate the mean or proportion of a population in different situations.However, the Z-distribution confidence interval is used when the population standard deviation is known or the sample size is greater than or equal to 30, while the T-distribution confidence interval is used when the population standard deviation is unknown and the sample size is less than 30.In the given situation, the student wants to describe the mean hours spent studying on weeknights. They have a good sense that the variance is 2 hours. Here, the population standard deviation is not given and the sample size is not greater than or equal to 30.

Hence, the best confidence interval type that applies in this case is the T-distribution confidence interval.

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Related Questions

Drag the events to the correct boxes.

The golden age of Greece came to an end.


Macedonia conquered all of Greece.


The Spartan army laid siege to the city of Athens.


Athens and Sparta formed opposing alliances.



Causes of the Peloponnesian War


Effects of the Peloponnesian War

Answers

It could be any other decade of battle earlier than the Spartan wellknown Lysander defeated the Athenian fleet at Aegospotami. This defeat brought about Athenian surrender. As a result, the Peloponnesian War became concluded.

The Peloponnesian War:

The Peloponnesian War(431–404 BC) became anhistoric Greek struggle fare fought among Athensand Spart a and their respective allies for the hegemony of the Greek world. The struggle fare remained not sure for a long term till the decisive intervention of the Persian Empirein help of Sparta. Led through Lysander, the Spartan fleet constructed with Persian subsidies sooner or later defeated Athens and commenced a length of Spartan hegemony over Greece. Historians have historically divided the struggle fare into 3 phases. The first phase (431–421 BC) became named the Ten Years War, or the Archidamian War, after the Spartan king Archidamus II, who released numerous invasions of Attica with the full hoplite military of the Peloponnesian League, the alliance community ruled through Sparta. However, the Long Walls of Athens rendered this approach ineffective, at the same time as the advanced military of the Delian League (Athens' alliance) raided the Peloponnesian coast to cause rebellions inside Sparta. The precarious Peace of Nicias became signed in 421 BC and lasted till 413 BC.

Several proxy battles came about in the course of this length, significantly the war of Mantinea in 418 BC, gained through Sparta towards an ad-hoc alliance of Elis, Mantinea (each former Spartan allies), Argos and Athens. The major occasion became though the Sicilian Expedition among 415 and 413 BC, in the course of which Athens misplaced nearly all its military within side the tried seize of Syracuse, an best friend of Sparta.

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The Hittites established one of the greatest empires between ________ BC and ________ BC.

Answers

Answer:

1750 & 1650

Explanation:

The Hittites were an Anatolian people who played an important role in establishing first a kingdom in Kussara before 1750 BC, then the Kanesh or Nesha kingdom (ca. 1750-1650 BC), and next an empire centered on Hattusa in north-central Anatolia around 1650 BC.

A person who is not able to vote in person has the option to vote by:

Answers

A person who is not able to vote in person has the option to vote by Postal Ballot.

Personal Appearance is not compulsory in case of elections in India. The Postal Ballot facility is obtainable specifically to those who cannot attend the booth themselves. It is extended to PwD electors, senior citizens above the age of 80 years, officers on essential election duty, and Covid-19 positive patients.

Postal Ballot is a system where ballot papers are distributed to the electors and returned by post in contrast to those voting at polling stations via an Electronic Voting Machine. Postal votes constitute a form of early voting.

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Fixed sentences given for certain categories of crimes (usually drug, alcohol or gun related crimes) are called

Answers

Answer:

The correct answer to the question above is "Mandatory sentencing"

Explanation:

Crime could be interpreted as an act of violation of a laid down government laws and orders which would activate punishment as stated by the same law.

Mandatory sentencing is a pre-calculated mandatory or minimum sentence that offenders serve for certain crimes. Mandatory sentencing varies among different countries. The word pre-calculated is used because, the degree of a particular punishment, which is usually measured in the number of years to be served in Jail by committing a particular crime has been defined already in the country's law. So an offender is already aware of the kind of punishment to be served for law violation, limiting judge's discretion. Mandatory sentencing aims to punish repeat offenders and general law violators. For example, drink driving, possession of hard drugs and a whole lot of other moral crimes.    

1. Most of the land occupied by the
Ottomans had been part of the

a.Mughal
b.Safavid
c.Byzantine
d.Western Roman​

Answers

The correct answer is C) Byzantine Empire.

Most of the land occupied by the Ottomans had been part of the Byzantine Empire.

After the split of the Roman Empire into the West Roman Empire and teh East Roman Empire, many years later the East became the Byzantine Empire with its capital in Constantinople, modern-day Turkey.

The Byzantine Empire occupied the territories of the Mediterranean Sea, Turkey, Italy, Greece, big portions of the Middle East, and North Africa.

In the 15th century, the Ottoman Empire defeated the Byzantine army and captured Constantinople.

Osman was the founding leader of the Ottoman Empire. History says that he had a dream. In that dream, a spiritual figure called Sheikh Edebali appeared. Osman could envision how he led his troops through many parts of Europe, Africa, and Asia. In the dream, Osman envisioned mountain ranges such as the Caucasus, the Danube River, and the North African region with the Nile River. His vision reached places in the Middle East such as regions between the Tigris and Euphrates Rivers.

1. But when the conversation turned to other things, Jonas was left,
still, with a feeling of frustration that he didn't understand.
He found that he was often angry, now: irrationally angry at his
groupmates, that they were satisfied with their lives which had none of
the vibrance his own was taking on. And he was angry at himself, that
he could not change that for them. (pg. 99)
Type of conflict:
Explanation:

Answers

Thinking as an individual, Jonas becomes increasingly frustrated. He is adamant about wanting to change things. He wants the people to have memories, and he wants to share the burden of pain with them.

why was it important for Napoleon to obtain the support of the French people before he took powers

Answers

Answer:

The reason is that if he wanted France really badly he had to obtain powers from them first

the ruler before napoleon, louis xvi, was horrible, the french people hated him. so napoleon had to get the people to trust him so that he could take power.

Which capital city is located in the Southeast quarter of the United States? (THANK YOU AND PLEASE HURRY!!!!)(WHO EVER GETS IT RIGHT WILL GET BRAINLIEST)

A) Carson City

B) Harrisburg

C) Montgomery

D) Pierre

Answers

Note that the capital city is located in the Southeast quarter of the United States is: "Montgomery" (Option C).

What is Montgomery known for?

Montgomery is the capital city of Alabama, which is located in the United States' southeast section. It is bounded to the north by Tennessee, to the east by Georgia, to the south by Florida, and to the west by Mississippi.

Montgomery is situated in the rolling hills of Alabama's Gulf Coastal Plain area, which is distinguished by its flat to moderately undulating topography and abundant woodlands. The city is located on the banks of the Alabama River, which runs through the city center and offers a variety of recreational possibilities such as boating, fishing, and hiking.

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C Montgomery

Located in the Southeast quarter of the United States is where the capital of Montgomery appears.

Which capital city is located in the Southeast quarter of the United States? (THANK YOU AND PLEASE HURRY!!!!)(WHO

Low beam headlamps are only effective for speeds up to __________ mph. 50
20
30
40

Answers

Low beam headlamps are only effective for speeds up to 30 mph. Low beam headlamps are designed to provide adequate illumination for driving at lower speeds and in urban or well-lit areas. They are typically effective for speeds up to 30 mph.

Low beam headlamps emit a focused, downward-directed light beam that illuminates the road immediately ahead of the vehicle. This type of lighting is intended to provide sufficient visibility for navigating at lower speeds, such as during city driving or when driving through residential areas.

At higher speeds, especially on highways or in rural areas with less ambient lighting, low beam headlamps may not provide adequate illumination for safe driving. The limited range and narrower beam pattern of low beams can restrict visibility, making it more challenging to identify objects, hazards, or road conditions further ahead.

To ensure optimal visibility and safety, it is recommended to use high beam headlamps when driving at higher speeds, typically above 30 mph. High beams provide a more extensive and brighter light pattern that improves visibility and allows drivers to see further down the road, enhancing their ability to react to potential hazards in advance.

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Suppose you expect to receive a cash flow of $4,000 exactly 7 years from today. If the discount rate is 11%, what is today's cash equivalent to this future amount? Round your answer to the nearest penny.

Answers

Highly liquid assets that can be quickly converted into cash with little chance of value fluctuation are referred to as cash equivalents. We have to find today's cash equivalent to this future amount.

To calculate the present value of a future cash flow, we can use the formula:

Present value = Future value / (1 + r)n

Where:r is the discount rate.

n is the number of periods

The given values are:

Future value = $4000Discount rate = 11%

The number of years = 7n = 7

Since the cash flow is expected to be received 7 years from today, we need to find the present value of this future cash flow today. Therefore, n = 7

We can substitute these values in the formula as follows:

Present value = $4000 / (1 + 0.11)7

≈ $1828.56

Therefore, today's cash equivalent to this future amount is $1828.56 (rounded to the nearest penny).

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What does a negative slope mean

Answers

Answer: A negative slope means that two variables are negatively related; that is, when x increases, y decreases, and when x decreases, y increases. Graphically, a negative slope means that as the line on the line graph moves from left to right, the line falls.

Explanation:


Which statement best illustrates an example of economic specialization?

Answers

The correct answer to this open question is the following.

You forgot to include the options for this question. However, we can answer the following.

The statement that best illustrates an example of economic specialization is "A business focuses on producing screens for phones instead of manufacturing the entire phone."

This statement is correct because business specialization tries to focus on producing a very specific element to make it perfect to satisfy the necessities of its clients. Furthermore, companies bet on specialization because in this way they can have fewer competitors in the market, trying to increase the number of sales and the profit.

"A firm concentrates on creating screens for smartphones instead of manufacturing the full phone," says the phrase that best exemplifies economic specialization.

This remark is valid since company specialization aims to concentrate on manufacturing a very particular aspect in order to make it excellent in order to meet the needs of its customers.

Furthermore, businesses want specialization since it allows them to have fewer competition in the market, hence increasing sales and profits.

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Taking a test help pleaseee.

Which individual is most responsible for the desegregation of Central High School?

Earl Warren
Orval Faubus
Thurgood Marshall
Dwight D. Eisenhower

Answers

Answer:

Orval Faubus

Explanation:

He was the one who did this

evolutionary psychologists note that humans are primed to be susceptible to certain kinds of acquired fears. explain why this would be adaptive.

Answers

Humans are primed to be susceptible to certain kinds of acquired fears as it helps them to avoid potential dangers, which would have been crucial for survival in the past, and therefore, are likely to have been selected for throughout human evolution.

Evolutionary psychologists suggest that humans are primed to be susceptible to certain kinds of acquired fears because it is adaptive from an evolutionary standpoint. Fear helps humans to avoid potential dangers, which would have been crucial for survival in the past. For example, fear of snakes and spiders, which are common phobias, could have been adaptive because early humans who were more afraid of these potentially dangerous creatures were more likely to avoid them and survive.

Similarly, fear of heights could have helped early humans avoid falling and injuring themselves. Therefore, acquired fears that are relevant to survival and avoiding potential dangers are likely to have been selected for throughout human evolution, as they confer a survival advantage.

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I suffered more anxiety than most of my fellow-slaves. I had known what it was to be kindly treated; they had known nothing of the kind. They had seen little or nothing of the world. They were in very deed men and women of sorrow, and acquainted with grief. Their backs had been made familiar with the bloody lash, so that they had become callous; mine was yet tender; for while at Baltimore, I got few whippings, and few slaves could boast of a kinder master and mistress than myself; . . .

Which words from the excerpt create imagery that emphasizes the hardships that enslaved persons endured?

“callous,” “bloody”
“little,” nothing”
“sorrow,” grief”
“treated,” “master”

Answers

Answer:

The two words that emphasize hardships are: "callous" and "bloody."

Explanation:

This is an excerpt from Narrative of the Life of Frederick Douglass: An American Slave. Douglass would go one to escape slavery in Maryland and become a national figure in the abolitionist movement and becoming an important social reformer, orator, and writer. He also served in positions like a United States Marshall and a Recorder of Deeds. His voice had been important to the development of the abolitionist movement and for the subsequent historical understanding of the anti-slavery movement and the reconstruction era. The word callous gives the sense that slaves endured repeated physical abuses at the hands of their owners and bloody also reflects that there are still new wounds inflicted repeatedly and frequently.

What are some ways WWII changed life for people back home? Check all that apply.
A.Factories produced more consumer goods than they ever had before.
B.Workers’ jobs changed as factories produced materials needed for the war.
C.Many people planted victory gardens at their homes to grow their own food.
D.The government required citizens to ration material goods to help the troops.
E.There were greater supplies for the people at home as production increased.
F.There were more jobs for women and minorities as factories needed workers.

Answers

Answer:

B) Workers’ jobs changed as factories produced materials needed for the war.

C) Many people planted victory gardens at their homes to grow their own food.

D) The government required citizens to ration material goods to help the troops.

F) There were more jobs for women and minorities as factories needed workers.

Explanation:

CoRrEcT oN eDgE

So who is W.E.B Dubois?

Answers

William Edward Burghardt Du Bois was an American sociologist, socialist, historian, civil rights activist, Pan-Africanist, author, writer and editor.

Elizabeth the l... *

1.Was the queen of Russia that advanced the arts and education

2.Was the queen of England who defeated Phillip Il's navy

3.Was married to Henry VIII

Answers

Answer:

2. was the queen of England

Using Newton's 3rd law, explain why Bernice doesn't fall through the chair.

Using Newton's 3rd law, explain why Bernice doesn't fall through the chair.

Answers

Answer:

because its sturdy and it basically wont break if there's too much weight

Explanation:

its common sense its like if you drop a 10 pound weight on a plastic sheet it will bend but not break because it can handle more than 10 pounds I hope this helps

which sentence best completes the diagram

which sentence best completes the diagram

Answers

The answer to this question is B

Why is the United States Congress divided into two houses?


to allow the American people to vote for representation in one house or the other, but not both


to satisfy both large and small states and ensure that neither has an unequal level of power


to convince the British government to recognize the independence and sovereignty of the United States


to ensure that the legislative branch of the government has the power to limit the power of the judicial branch

Answers

Answer:

B

Explanation:

Im not sure but I sure hope I am correct and didn't mess u up :D

Marcy is concerned that her findings may be due to an extraneous uncontrolled variable and not her treatment. marcy is most concerned with group of answer choices internal consistency reliability. inter-rater reliability. external validity. internal validity.

Answers

Marcy is concerned that her findings may be due to an extraneous uncontrolled variable and not her treatment. Marcy is most concerned with internal validity. Option 4.

What is Internal validity?

Internal validity refers to the degree to which a study is able to establish a cause-and-effect relationship between the independent variable (the treatment in this case) and the dependent variable (the findings).

However, if there is an extraneous uncontrolled variable that could be influencing the findings, then it threatens the internal validity of the study and the ability to confidently conclude that the treatment is the cause of the observed effects.

Therefore, Marcy's concern about the extraneous variable relates to the study's internal validity.

Hence, the right answer is option 4. Internal validity.

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A long-term effect of the election of 1800 was
new duties for the vice president.
the decline of the Federalist Party.
an increase in John Adams’s power.
stricter laws about campaigning.

Answers

Answer:

An increase of John Adams power.

Explanation:

A long-term effect of the election of 1800 was an increase in John Adams’s power. The correct option is C. The twelfth amendment, requiring separate electoral votes for president and vice president, was the only constitutional modification brought about by the election of 1800.

What was John Adams's main achievement?

Adams regarded the successful resolution of this crisis as his greatest achievement as president. The Convention of Montefontaine, signed in October, put an end to hostilities between France and the United States.

The Democratic-Republican nominee, vice president Thomas Jefferson, defeated the Federalist Party nominee, president John Adams, in what is sometimes referred to as the "Revolution of 1800." An era of Democratic-Republican leadership was inaugurated by the election, which served as a catalyst for political realignment.

The ability of John Adams to unite Americans behind the cause of independence was his greatest accomplishment, even though he would later go on to become the second President of the United States in 1797.

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What happen when towns want to expand onto more land?






Answers

Answer:

they buy more land, or they build upon what they already have.

Explanation:

How Is DNA similar to a fingerprint?

Answers

Just like your actual fingerprint, your DNA fingerprint is something you are born with, it is unique to you.
DNA is similar to a fingerprint in that both are unique to an individual and can be used to identify them. DNA is a unique combination of genetic information that is found in every cell of a person's body, while fingerprints are one-of-a-kind patterns on the surface of the skin. Both DNA and fingerprints can be used to accurately identify people, making them an effective tool for criminal investigations.

THIS IS LITERALY 100 points ill do brainliest if its helpful , please help
According to geographers’ estimates, two out of three people in the world will live in a city by the year 2030. This migration to urban centers creates an increase in urban populations, resulting in the formation of megacities. Geographers define a megacity as any city with a population of more than 10 million people. Today, there are over 30 megacities in the world. Use the internet to research the names and locations of the world’s megacities. Then pick two cities, research them further, and create a profile about them. For each city, include the following information: location brief history of the city population density problems currently facing the city what city planners are doing to address the city’s problems what city planners could be doing differently

Answers

Answer:

Tokyo, Japan.

Delhi, India.

Shanghai, China.

São Paulo, Brazil.

Ciudad de México (Mexico City), Mexico.

Al-Qahirah (Cairo), Egypt.

Mumbai, India.

Beijing, China.

Explanation:

Tokyo, Japan

Tokyo, formerly (until 1868) Edo, city and capital of Tokyo to (metropolis) and of Japan. It is located at the head of Tokyo Bay on the Pacific coast of central Honshu. It is the focus of the vast metropolitan area often called Greater Tokyo, the largest urban and industrial agglomeration in Japan.Tokyo has an incredible variety of museums, galleries, shrines and temples to keep you preoccupied for many days. In the city of Tokyo there is a wide spectrum of places to visit, from the very distinguished Imperial Palace, home of the Emperor and past shogunates, the legendary Tokyo Tower, and Tokyo Sky Tree, the new landmark of Tokyo.

Delhi, India

Delhi, city and national capital territory, north-central India. The city of Delhi actually consists of two components: Old Delhi, in the north, the historic city; and New Delhi, in the south, since 1947 the capital of India, built in the first part of the 20th century as the capital of British India. One of the country’s largest urban agglomerations, Delhi sits astride (but primarily on the west bank of) the Yamuna River, a tributary of the Ganges (Ganga) River, about 100 miles (160 km) south of the Himalayas. The national capital territory embraces Old and New Delhi and the surrounding metropolitan region, as well as adjacent rural areas. To the east the territory is bounded by the state of Uttar Pradesh, and to the north, west, and south it is bounded by the state of Haryana.

what is happening in Afghanistan 2021

Answers

Answer:

The US pulled out all their military forces after years of fighting, causing the Taliban to take all left over equipment, and slaughtering thousands of foreigners and Christians, while multiple countries are stepping in and flying thousands of those groups into their countries, US included.

HELP ASAP!! PLEASE! (20 points)
Were the colonists being too stubborn and uncompromising about paying taxes in the 13 Colonies? Explain your ideas.​

Answers

Answer:

Many colonists felt that they should not pay these taxes, because they were passed in England by Parliament, not by their own colonial governments.

They protested, saying that these taxes violated their rights as British citizens. The colonists started to resist by boycotting, or not buying, British goods.

Explanation:

Which of the following rivers was claimed by the french? (There is more than one answer) PLEASE HELP A. St. Lawrence River B. Mississippi River C. Ohio River D. Hudson River E. Potomac River

Answers

Answer:

The Mississippi River and the Ohio River were claimed by the French.

pls help il give tons of point and lot of stars thx

pls help il give tons of point and lot of stars thx
pls help il give tons of point and lot of stars thx
pls help il give tons of point and lot of stars thx

Answers

Option C. By describing the types of music in America, this author is showing a sense of pride.

What is folk music?

Folk music is a genre of traditional music that originates from a particular region, culture, or community. It is typically passed down orally from one generation to another and is usually associated with a particular group or community, rather than with professional musicians or commercial music labels.

Folk music often reflects the cultural and social aspects of a particular region or community, such as the history, beliefs, and customs of the people.

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Use the ___________________ property to resize or scale the background image. The nurse is working on a surgical floor. The nurse must logroll a male client following a:a. laminectomy.b. thoracotomy.c. hemorrhoidectomy.d. cystectomy. Coursesurse HomeOn an architect's blueprint, 1 inch corresponds to 4 feet. Find the length of a wall represented by a line 2inches long on the blueprint.ssignmentsThe length of the wall isft. which conversion factor would be used to convert grams of calcium oxide (cao) to moles, if the mass of a sample of cao was known? 7. which monitoring parameter is most important to use when assessing for effectiveness of oropharyngeal suctioning? a. patient weight b. respiratory rate a quadrilateral has vertices E(-4,2) F(4, 7)G(8,1) and H(0, -4) which statements are true? check all that apply Fungi can be differentiated from each other based on the presence of septa and structural spore type. Describe how septa and spores are different from each other in fungi a slogan can be an integral part of a brand's image and personality, but it can serve other purposes as well. one of these purposes could be to: Help show work A 85.7%B 21.1%C64.6%D 35.4% Since riding the bus will reduce traffic for everyone, Suvi's transportation choice ... 1. Suvi is deciding whether or not to take the bus or drive to work. Find the highest common factor (HCF) of 72 and 90 WILL GIVE BRAINLIEST NO LINKS OR SPAM WILL BE REPORTEDWhat two events led to Georgias agricultural problems during the Roaring Twenties? How do you know if a graph will cross or bounce?. An unplanned decrease in inventories results in Group of answer choices a decrease in planned investment. an increase in planned investment. actual investment that is greater than planned investment. actual investment that is less than planned investment. Write an equation of the line in slope-intercept form given the graph below. Over which part of the globe do the prevailing winds blow west to east? (1 point)O between 0S and 30S latitudeO between 30N and 60N latitudeO between 0N and 30N latitudeO between 60'S and 90S latitude The population of a city can be modeled by ( P(t)=40 e^{0.05 t} thousand persons, where ( t ) is the number of years after ( 2000 . Approximately how rapidly will the city's population be changing in 2027? The population will be changing by thousand persons/year. (Enter your answer rounded to at least three decimal places) pls help me i will mark as brilliant A person extends his uncovered arms into windy ambient air at 54F and 30mph to feel close to nature. Initially the skin temperature of the arm is 84F. You may consider the arm to be a cylinder that is 2ft long and 3 inches in diameter. Determine the rate of heat loss from the arm. 2. He lives in a big city.a.b.