There is sufficient evidence to reject the null hypothesis that his treatment is ineffective at increasing hours of sleep above 5 hours.
How to explain the hypothesis?From the information given, the null hypothesis is n = 5 and the alternative hypothesis is that n > 5. The level of significance is given as 95%.
The test statistic will be:
= (6.4 - 5)(0.8/✓64)
= 14.
Since the z calculated more than the critical value, the null hypothesis will be rejected.
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Career Options In The Field Of Sports
Edexcel exam due date on may June 2021? On which date is it starting
whats the best answer for this equation: 4(b - 4) ; b = 5
You have 4 numbered tags in a bag { 1,3,5,7}. You will draw out two without replacement.
a) find the mean of the population
b) List all possible samples of two and calculate the mean of each sample
c) Calculate the sample mean of all your sampling distribution. Compare to your answer with the population mean.
Answer:
Explanation:
a) The mean of the population is given by:
Mean = (1 + 3 + 5 + 7) / 4 = 4
Therefore, the mean of the population is **4**.
b) There are six possible samples of two that can be drawn from the population:
{1,3}, {1,5}, {1,7}, {3,5}, {3,7}, {5,7}
The mean of each sample is:
{1,3}: (1+3)/2 = 2
{1,5}: (1+5)/2 = 3
{1,7}: (1+7)/2 = 4
{3,5}: (3+5)/2 = 4
{3,7}: (3+7)/2 = 5
{5,7}: (5+7)/2 = 6
Therefore, the means of all possible samples are:
2, 3, 4, 4, 5, 6
c) The sample mean of all possible samples can be calculated as follows:
Sample mean = (2 + 3 + 4 + 4 + 5 + 6) / 6 = 24 / 6 = 4
The sample mean is equal to the population mean. This is because the sample size is small and all possible samples have been considered. In general, as the sample size increases and more samples are considered, the sample mean will approach the population mean .
I hope this helps! Let me know if you have any other questions or if there is anything else I can help you with.
You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable preliminary estimation for the population proportion. You would like to be 99% confident that you estimate is within 3.5% of the true population proportion. How large of a sample size is required?
Solution : Given that, = 0.5 1 - = 0.5 margin of error
Mrs. Brown is giving a reward to the winner of a game in math class. She has 4 types of candy bars and is allowing the winner to choose 2. How many possible combinations can they choose?
Answer:
Explanation:
To find the total number of possible combinations, we need to use the combination formula. Since the order of the candy bars doesn't matter, we can use the formula for combinations, which is:
n C r = n! / (r! * (n-r)!)
where n is the total number of candy bars, and r is the number of candy bars we want to choose.
In this case, n = 4 (since there are 4 types of candy bars), and r = 2 (since the winner is choosing 2 candy bars).
So we have:
4 C 2 = 4! / (2! * (4-2)!)
= 4! / (2! * 2!)
= (4 * 3 * 2 * 1) / (2 * 1 * 2 * 1)
= 6
Therefore, there are 6 possible combinations of 2 candy bars that the winner can choose.
For a random sample of 9 women the average resting pulse rate is 76 bets per minute and the sample standard deviation is 5 the standard error of the sample mean is
Answer:
Standard Error of the Mean = σ/√N = \(\frac{5}{\sqrt{9}}\)
Explanation:
SEM is calculated by taking the standard deviation and dividing it by the square root of the sample size.
mom was in a certain region have noticed a decrease in the variety of crops that they were able to successfully go on the region this has impacted the number of crops that they were able to sell to customers which of the following changes has most likely caused the change in biodiversity
Answer:
Based on the information provided, it is difficult to determine the specific change that has caused the decrease in crop variety and biodiversity in the region. However, there are several potential factors that could contribute to this change:
1. Climate change: Shifts in temperature and rainfall patterns can affect the suitability of certain crops for cultivation, leading to a decrease in crop variety.
2. Land use changes: Conversion of agricultural land for other purposes, such as urbanization or industrial development, can reduce the available area for crop cultivation and impact biodiversity.
3. Intensive farming practices: The use of monoculture and reliance on a few high-yielding crop varieties can lead to a loss of crop diversity over time.
4. Pest and disease outbreaks: The emergence of new pests or diseases that affect specific crops can result in decreased crop variety if farmers are forced to abandon susceptible crops.
5. Economic factors: Changes in market demand and consumer preferences may influence farmers' decisions on which crops to grow, leading to a reduction in crop variety.
It is important to conduct further investigation and analysis to determine the specific factors contributing to the decrease in crop variety and biodiversity in the region. Local environmental and agricultural experts would be better equipped to provide a comprehensive assessment based on the specific context and conditions of the region.
The data represent the time, in minutes, spent reading a political blog in a day. Construct a frequency distribution using 5 classes . In the table, include the midpoints, relative frequencies, and cumulative frequencies. Which class has the greatest frequency and which has the least frequency?
13 18 11 18 7
19 6 10 12 7
14 17 18 6 16
18 10 1 0 15
complete the table starting with lowest class limit
class frequency midpoint r.frequency c. frequency
The class with the greatest frequency is the class "15.2 - 19" with a frequency of 7. The class with the least frequency is the class "0 - 3.8" with a frequency of 2.
To construct a frequency distribution with 5 classes for the given data representing time spent reading a political blog in a day, we need to determine the class intervals and calculate the frequency, midpoint, relative frequency, and cumulative frequency.
First, we find the range of the data:
Range = Maximum value - Minimum value
Range = 19 - 0
Range = 19
To determine the class width, we divide the range by the desired number of classes:
Class width = Range / Number of classes
Class width = 19 / 5
Class width ≈ 3.8
Now, we can construct the frequency distribution table:
Class Frequency Midpoint R. Frequency C. Frequency
0 - 3.8 2 1.9 2/20 = 0.1 2
3.8 - 7.6 4 5.7 4/20 = 0.2 6
7.6 - 11.4 4 9.5 4/20 = 0.2 10
11.4 - 15.2 3 13.3 3/20 = 0.15 13
15.2 - 19 7 17.1 7/20 = 0.35 20
By organizing the data into classes and analyzing the frequencies, we can gain insights into the distribution of reading time and identify the most and least common time intervals spent on reading the political blog.
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Jack Foley is best known for
O sound effects in film
O acting
O painting
O costumes used in films
Answer:
sound effects
Explanation:
hope this helps!
Have a nice day! :)
Question 14 of 20
А
is a letter that is written by someone you know and is used by a
college during the application process.
A. personal essay
B. letter of application
C. letter of endorsement
D. letter of recommendation
Answer:
D.
Explanation:
Colleges often ask for two or three recommendation letters from people who know you well. These letters should be written by someone who can describe your skills, accomplishments and personality.
What is the purpose of taking a personality inventory assessment?
O A.
OA. to find out what personality traits you should acquire for a successful career
B.
to identify your personality traits and relate them to a suitable career
O.C. to compare your personality traits with those of successful people in different
O D.
Identify aspects of your personality that you can improve with the help of am
What does the word "resilient" suggest about Rembrandt in paragraph 4?
Based on the excerpt, the word "resilient" as suggested about in Rembrandt in paragraph 4 is to made hard or flexible .
Check more about the term resilient below.
What is the meaning of being resilient?Resilience is known to be the act or the process as well as the result of successfully been able to adapt to harsh or difficult as well as challenging life issues, and this is one that is done through mental, emotional, as well as behavioral flexibility.
It is seen as the adjustment to any form of external as well as internal demands.
The resilient" term as suggested about in Rembrandt in paragraph 4 about the painting is that it is one that can be able to withstand anything that is harsh or other hard conditions.
Therefore, based on the above, one can say that Based on the excerpt, the word "resilient" as suggested about in Rembrandt in paragraph 4 is to made hard or flexible .
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“An investigation to see if people who regularly watch football are better at remembering a football score than people who never watch football.” What is the null hypothesis and what is the Directional alternative hypothesis.
Note that the alternative directional hypothesis (HA) in this case is "There is no statistically significant difference in the ability to remember a football score between people who watch football regularly and people who never watch football."
Why is this so ?To examine whether there exists a significant difference in the ability to recall a football score between frequent and non-frequent viewers of football, the null hypothesis ( H0) assumes that no such difference exists.
In a statistical inference experiment, the alternative hypothesis is a statement. It is opposed to the null hypothesis and is symbolized by Ha or H1. It is also possible to define it as an alternative to the null. An alternative theory is a proposition that a researcher is testing in hypothesis testing.
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A spinner contains the numbers 1 through 50. What is the probability that the spinner will land on a number that is not a multiple of 11?
Answer:
46/50 or 92%
Explanation:
In 50, the multiples of 11 are:
11, 22, 33 and 44
there are 4/50 that are a multiple of 11
so there are 46/50 that are not
(50-4=46)
3) Explain the difference between the term's "variable" and "data." Include an
illustration that demonstrates this difference.
Statistics 2
A young sumo wrestler decided to go on a special high-protein diet to gain weight rapidly. After 11 months, he weighed 140 kilograms. he gained weight at the rate of 5.5 kilograms per month. Let y represent the sumo wrestler's weight (in kilograms) after x after x months, Complete the equation for the relationship between the weight and number of months.
y=
The equation for the relationship between the weight and number of months. y = 79.5 + 5.5x
Total Month = 11 months
Gained weight at the rate = 5.5 kilograms per month.
let initial weight W,
initial weight + total month x rate = 140
w + 11 x 5.5 = 140
w = 79.5
if y is total weight after x months
y = 79.5 + 5.5x
What is weight ?In science and technology, the weight of an object is the force acting on an object due to gravity. Some standard textbooks define weight as a vector quantity, the gravitational force acting on an object. Others define weight as a scalar quantity, the magnitude of gravitational force. Still others define it as the size of the reaction force applied to the body by mechanisms resisting the influence of gravity: weight is a quantity measured, for example, by a spring balance. So in the state of free fall the weight would be zero. In this sense of weight, objects on the ground can be balanced: if ignored without resistance, the famous apple on its way to the ground near Isaac Newton would have fallen from the tree.
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Przedstaw w punktach zalety serialu opisane w recenzji
The idea of a
"two-track mind" is central
to ___ theory
A. introspection
B. sensory attention
C. selective attention
D. dual-processing
Answer:
D
Explanation:
The idea of a “two-track mind” is central to dual processing theory.
What is dual processing theory?
A dual process theory is defined in terms of the psychology. This theory explains that how knowledge strength develop in two separate ways, or it can also be said that knowledge strength develop as a result of two different processes.
An implicit, unconscious process and an explicit, conscious process are frequently combined in the two processes. Dual processing theory revolves around the concept of a “two-track mind.”
Therefore, option D is correct.
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Which three of the following words have similar meanings?
impracticable
conceivable
unrealizable
viable
preposterous
write an article about how strategies novartise can use to grow from billion dollar company to a trillion dollar company like alphabet inc ( 1500 words)
Novartis is a leading pharmaceutical company that has been in operation for over two decades. The firm has achieved remarkable success over the years, and its success has been attributed to its strategic planning. In this article, we will discuss the strategies that Novartis can use to grow from a billion-dollar company to a trillion-dollar company like Alphabet Inc.
The first strategy that Novartis can use is to focus on research and development. The pharmaceutical industry is constantly evolving, and companies that fail to invest in research and development are likely to be left behind. Novartis can invest heavily in research and development to come up with new drugs that can cure various diseases. The company can also collaborate with other companies and universities to come up with groundbreaking innovations.
Another strategy that Novartis can use to grow is through strategic partnerships. The company can collaborate with other firms to expand its market share and access new markets. For instance, Novartis can partner with technology companies to develop new technologies that can be used in the healthcare industry.
Moreover, Novartis can focus on expanding its product line to cater to the diverse needs of its customers. The company can develop drugs for different diseases and conditions, thereby increasing its market share. Additionally, the firm can expand its business operations to other regions to tap into new markets.
Lastly, Novartis can use digital technologies to streamline its operations and enhance efficiency. For instance, the company can use artificial intelligence and machine learning to improve its drug development process. The company can also use data analytics to gain insights into customer needs and preferences.
In conclusion, Novartis can use various strategies to grow from a billion-dollar company to a trillion-dollar company like Alphabet Inc. These strategies include investing in research and development, strategic partnerships, expanding product line, and using digital technologies. By adopting these strategies, Novartis can position itself as a leader in the pharmaceutical industry.
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A die is tossed three times. What is probability that a 6 will show in the upward face at least once?
Answer:
1/216.
Explanation:
The probability of a 6 appearing on any single roll of a fair die is 1/6. Since the rolls are independent, the probability of a 6 appearing on all three rolls is (1/6) x (1/6) x (1/6) = 1/216. Therefore, the probability that a 6 will not appear in any of the three rolls is 1 - 1/216 = 215/216. Finally, the probability that a 6 will appear at least once in the three rolls is 1 - 215/216 = 1/216. Thus, the probability of a 6 appearing in the upward face at least once is 1/216.
today post your crush name in this question
my crush name is charlotte what's your's
Answer:
jamiyah
Explanation:
she is cute and she is awesome how should I ask her out
i dont know if i have one maybe lourdes or leo hmmmmmmmmmmmmmmmmmm
1.4 "sometimes conflict can be healthy" critically discuss this statement
Discussing the given sentence, we have that conflicts can be healthy when they are used to observe other points of view and mutual learning.
How to have a healthy discussion?Be honest, open up and talk about what's bothering you. But when speaking, also be willing to hear the other person's point of view. Listen carefully, think about what the other is talking about, seek to see through their eyes.
In other words we can say that when there is a healthy discussion it will be in a respectful way always showing different points of view, where the two people will learn from each other.
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Based on your own knowledge and opinion, what do you believe will be the most common job in New York in 2030? In one paragraph, explain your rationale.
Answer:
According to research and current trends, some of the most in-demand jobs in New York by 2030 could be related to technology, healthcare, and sustainability. With the ongoing digital transformation, the demand for IT professionals, software developers, and data analysts is expected to increase. The healthcare industry is also growing due to the aging population and advances in medical technology. Moreover, with the growing concerns about climate change and sustainability, there could be a rise in jobs related to renewable energy, environmental science, and green technology.
In college, the level of thinking your instructors expect from you exceeds that which you did in high school.
2. Pare most nearly means:
a, cut
b. fruit
c. two
d. umbrella
Identify strategies from 30 days of familias learning Irgether resource and explain how those ideas will help families promote Literacy in their homes, Dascribe your experiences and plans for encainging familias to use children's books and literey activites in their home
In its broadest meaning, literacy refers to "specific ways of thinking about and doing reading and writing" with the aim of comprehending or verbally expressing concepts in a given environment and methods.
Thus, In other words, people in literate civilizations have certain ways of creating and reading written material, as well as attitudes about these methods.
According to this perspective, writing is always done for a certain aim, whereas reading is always done for a specific reason and literacy.
The ways that literacy is taught, learnt, and practiced throughout the lifespan are always influenced by beliefs about reading and writing and its worth for society and the individual.
Thus, In its broadest meaning, literacy refers to "specific ways of thinking about and doing reading and writing" with the aim of comprehending or verbally expressing concepts in a given environment and methods.
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If the odds against event E are 1 to 19 what is the probability of E
Answer:
18 to 19
Explanation:
it is the opposite
The Sierra Club later expanded its mission toThe most serious environmental effect of rising sea levels is
Note that the most serious environmental effect of rising sea levels is "possible flooding of low lying areas. (Option C)
What is flooding?A flood is an outpouring of water that submerges normally dry ground. The term "flowing water" can also refer to the influx of the tide. Floods are a major problem in agriculture, civil engineering, and public health, and are studied in the science of hydrology.
Floodwaters can endanger lives, inundate homes and businesses, destroy valuables, damage key infrastructure, and obstruct access to essential public services as they spread.
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Full Question:
Although part of your question is missing, you might be referring to this full question:
The most serious environmental effect of rising sea levels is
saltwater contamination of fresh water.
the increasing number of high tides.
possible flooding of low lying areas.
damage to wharfs and docks.