A medical researcher measured the pulse rates (beats per minute) of a sample of randomly selected adults and found the following Student's t-based confidence interval: With % Confidence, (Pulse) a) Explain carefully what the software output means. b) What's the margin of error for this interval? c) If the researcher had calculated a % confidence interval, would the margin of error be larger or smaller?
Answers
The software output implies that the researcher is 95 percent confident that the interval given regarding the beats per minute contains the true mean heart of the adults.
From the complete information, the margin of error will be calculated as:
= (Upper limit - Lower limit) / 2
where,
Upper limit = 73.325706
Lower limit = 68.509306
= (73.325706 - 68.509306) / 2
= 4.8164 / 2
= 2.4082
Also, it should be noted that in a situation where there is an increase in the confidence interval, this will lead to an increase in the margin of error.
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Related Questions
Create all of the possible arrays for modeling a rectangular quilt with
the 24 paper squares. Write an equation to accompany each array.
You can use the attached pre-made quilt squares by cutting and
pasting them, or you can draw the arrays with your own designs on a
separate sheet of paper?
Answers
An equation to accompany each array is as follows;
(r³ - 3) × 1 = 24, (r² + 3) × 2 = 24, (r² - 1 ) × 3 = 24, (r² - 3 ) × 4 = 24, (r) × 8 = 24, (r - 1 ) × 12 = 24, and (r - 2) × 12 = 24 where, r = 3.
How to model a rectangular array?The rectangular array will be considered as rows.
Now, when we take the first side as the length represented by L and the second side as the width represented by W.
Area of a rectangle is given by the formula;
Area = length * width
Area = L * W
We are modeling a rectangular quilt with the 24 paper squares and as such the total area of the quilt is 24 squares which means;
24 × 1 = 24
All squares are arranged in a single row;
(r³ - 3) × 1 = 24
12 × 2 = 24
12 squares arranged in 2 rows.
(r² + 3) × 2 = 24
8 × 3 = 24
8 squares arranged in 3 rows.
(r² - 1 ) × 3 = 24
6 × 4 = 24
6 squares arranged in 4 rows.
(r² - 3 ) × 4 = 24
3 × 8 = 24
3 squares arranged in 8 rows.
(r) × 8 = 24
2 × 12 = 24
2 squares arranged in 12 rows.
(r - 1 ) × 12 = 24
1 × 24 = 24
1 square arranged in 24 rows.
(r - 2) × 12 = 24
In all of the above r = 3.
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Economicsssss help
Performance task- Reading / Writing
Answers
Economic theory can inform decisions about the minimum wage in a few ways.
What is wage?Wage is financial compensation paid to an employee for their work. It is usually calculated as a payment for a given period of time worked, such as an hour, a day, a week, or a month. Wage is usually determined by the nature of the job and the amount of experience, skill, and training required. A higher wage is usually associated with higher levels of work experience and training, or with more difficult or specialized tasks. Wage is a major determinant of living standards and can have a significant impact on an individual's quality of life.
Firstly, it can be used to predict the likely effects of raising the minimum wage on employment levels. Finally, economic theory can be used to analyze the overall macroeconomic impacts of raising the minimum wage, such as how it could affect consumer spending, business investment, and inflation.
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writing presentations and speeches are all examples of
Answers
Writing presentations and speeches are all examples of effective communication tools that allow individuals to convey information, express ideas, and influence an audience.
Presentations and speeches serve as platforms to deliver messages, engage listeners, and make a persuasive case for a particular topic or objective.
Both presentations and speeches require careful planning and organization to ensure clarity and coherence. They involve the selection and arrangement of relevant content, supporting evidence, and compelling arguments.
Additionally, they often incorporate visual aids, such as slides or props, to enhance understanding and engagement.
Effective writing for presentations and speeches involves tailoring the language and tone to the audience, considering their knowledge level and interests.
It requires structuring the content in a logical flow, employing rhetorical devices to capture attention, and employing storytelling techniques to create emotional connections.
Overall, writing presentations and speeches is an art that combines effective communication skills, strategic thinking, and creativity to deliver impactful messages and inspire action from the audience.
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Two laws are described below:
Law A: It depends on observable evidence.
Law B: It does not focus on a natural phenomenon.
Based on these characteristics, what can you conclude about Law A and Law B?
Both Law A and Law B are societal laws.
Both Law A and Law B are scientific laws.
Law A is a scientific law and Law B is a societal law.
Law A is a societal law and Law B is a scientific law.
Question 10(Multiple Choice Worth 3 points)How does a website address help you evaluate the reliability of a website?
Answers
Answer:
It D
Explanation:
A is sociatal B is scientific
Answer:
Option D
Explanation:
if s^2=t^-1 and t^1/4=u^-1/3, what is the value of s interm of u
Answers
Starting with the given equations:
s^2 = t^-1
t^(1/4) = u^(-1/3)
First, we can simplify the second equation by raising both sides to the 4th power:
t^(1/4)^4 = u^(-1/3)^4
t = u^(-4/3)
Substitute this value for t in the first equation:
s^2 = (u^(-4/3))^-1
s^2 = u^(4/3)
Taking the square root of both sides:
s = ± u^(2/3)
Therefore, the value of s in terms of u is s = ± u^(2/3).
researcher conducted a research and got the observations: 50, 60, 65, 75, 80, 85 and 90. Transform variable x into y. Establish the relation between x and y. (a) by multiplying it with a constant 6 and adding another constant 2 to it. (b) by dividing it with 5 and subtracting 3 to it.
Answers
Answer:
im sorry to do this but i really need some points
Explanation:
awgwadgsa
Which of the following is a low-cost option for entrepreneurs to market their
businesses?
A. Sponsoring a major sports team
B. Using social media to promote their products
C. Paying a professional athlete to talk about their product
D. Creating a national marketing campaign
Answers
Answer: B
Using social media to promote their products would be the cheapest option to use.
Plz mark brainliest:)
Answer:
B. Using social media to promote their products
Explanation:
How d you solve a match paired test
Answers
Answer:
Try looking it up on Khan Academy.
Explanation:
They have very good explanations.
Part III: Soft Drink Case (randomized block ANOVA)
A soft drink producer has developed four new products with different flavors. The
company wants to know whether customers have different preferences for these four
products. Six persons were asked to sample taste and rate each flavor on a scale of 1-20.
Delivery Time (Hours)
District Office UPX INTEX
Seattle 32 25
Los Angeles 30 24
Boston 19 15
Cleveland 16 15
N.Y.C. 15 13
Houston 18 15
Atlanta 14 15
St. Louis 10 8
Milwaukee 7 9
Denver 16 11
2
The data are given in the Excel dataset “drink.xls” which is attached. Based on the data
given, with a significance level of α = 0.05, conduct a formal hypothesis test to check
whether there exists different preferences.
Part IV: Credit card application case (Two-way ANOVA analysis)
In studying potential customers’ application for new credit cards, you are required to
analyze their credit scores (a value between 300 and 850). Attached Excel file
“creditcard.xls” contains credit scores for randomly selected individuals from Texas,
Pennsylvania, California, and Florida, who are grouped according to their ages. With
significance level of α = 0.05, test whether the state factor influence applicants’ credit
scores, whether the age factor has an influence on the creditworthiness, and whether there
is an interaction effect between two factors.
Part V: Lakeland Case (Contingency table analysis, test of independence)
Each home sold by Lakeland Homes can be classified according to the price level and to
the style. The management would like to determine if the price of the home and the style
of the home are independent variables. With the observed data given in the following
table and with a significance level of = 0.05, conduct a formal hypothesis test to help
the management in decision making process.
Answers
Answer:
Don't forget to make brainliest answer
Explanation:
I apologize, but I am not able to access the attached Excel files. However, I can provide a general overview of the types of analysis and tests that could be used for each case.
Part III: Soft Drink Case (randomized block ANOVA)
To determine whether there are differences in preferences for the four new soft drink products, a randomized block ANOVA could be conducted. This type of ANOVA is used when there are groups or blocks of individuals that are expected to have similar responses, such as in this case where the six persons were asked to sample and rate each flavor. The null hypothesis would be that there are no significant differences in the mean ratings for the four products, and the alternative hypothesis would be that at least one of the means is significantly different. If the null hypothesis is rejected, further post-hoc tests could be conducted to determine which means differ significantly from each other.
Part IV: Credit card application case (Two-way ANOVA analysis)
To analyze whether the state and age factors have an influence on applicants' credit scores, a two-way ANOVA could be conducted. This type of ANOVA is used when there are two factors that could potentially have an effect on the response variable, such as in this case where the factors are state and age. The null hypothesis for each factor would be that there are no significant differences in the mean credit scores across the different levels of that factor, and the alternative hypothesis would be that there is at least one significant difference. If the null hypothesis is rejected for either factor, further post-hoc tests could be conducted to determine which levels differ significantly from each other. Additionally, an interaction effect could be tested to determine if the effect of one factor on credit scores depends on the level of the other factor.
Part V: Lakeland Case (Contingency table analysis, test of independence)
To determine if the price and style of the home are independent variables, a contingency table analysis could be conducted. This type of analysis is used when there are two categorical variables and the goal is to test whether they are independent or whether there is an association between them. In this case, the observed data would be entered into a 2x3 contingency table (two levels of price and three styles) and a chi-squared test of independence could be conducted. The null hypothesis would be that there is no association between the price and style of the home, and the alternative hypothesis would be that there is an association. If the null hypothesis is rejected, further analyses could be conducted to determine the nature of the association.
A random sample of enrollments from medical schools that specialize in research and from those that are noted for primary care is listed
Research Primary care
474 577 605 663
783 467 670 414
813 443 565 696
884 694 277 419 783 605 427 728
546 474 371 107
442 587 293 277
662 555 527 320
a. Test if there is significant difference between the mean of the enrollments at α = 0.05.
b. Find the 95% confidence interval for the difference in the means.
Answers
There is a significant difference between the mean of the enrollments at α = 0.05 in the hypothesis.
How to illustrate the information?p-value = 0.0749
p.value >0.0.5
We Accept H0 at 0.05 significance level
Therefore, the mean enrollments for the two groups are not the same
p-value at (z = 1.918) for right-tailed test is 0.0276 or 2.76% (Using excel formula 1-NORM.S.DIST(1.918, TRUE))
As p-value is less than 5% significance level, we reject the null hypothesis.
Therefore, we have sufficient evidence to support the claim that more medical students enroll in research-oriented medical schools (p-value = 2.76%).
The 95% confidence interval is (-11.5746, 228.5452)
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Which of the following is not another term for community college?
Answers
Answer:
awners?
Explanation:
Alternetive tourism is so called to defferentiate from
Answers
Answer:
Mass tourism
Explanation:
Alternetive tourism is so called to defferentiate from mass tourism.
Mass tourism
this is the correct ans
A county clerk was supposed to use randomness to assign the order in which candidates' names appeared on voting
ballots. Among 50 different ballots, Democratic candidate names were placed on the first line 43 times. The probability
of a result that high is 0.000000104934. Assuming randomness was used, is the result of 43 Democratic candidate
names being placed on the first line significantly low, significantly high, or neither?
Answers
Answer:
What happens if the President-elect fails to qualify before inauguration?
If the President-elect fails to qualify before inauguration, Section 3 of the 20th Amendment states that the Vice President-elect will act as President until such a time as a President has qualified.
In the unlikely occurrence that both the President-elect and Vice President-elect fail to qualify by the beginning of the presidential term, Congress established an order of succession in 3 U.S.C. Sec. 19.
What happens if a candidate dies or becomes incapacitated?
There is no Federally-required process to follow if a candidate who is projected to receive electoral votes dies or becomes incapacitated between the general election and the meeting of electors. However, individual States may have their own requirements that govern how electors must vote at the meeting of the electors. In 1872, when Horace Greeley passed away between Election Day and the meeting of electors, the electors who were slated to vote for Greeley voted for various candidates, including Greeley. The votes cast for Greeley were not counted due to a House resolution passed regarding the matter. See the full Electoral College vote counts for President and Vice President in the 1872 election.
We don’t know what would happen if a candidate who, after dies or becomes incapacitated between the meeting of electors and the counting of electoral votes in Congress.
The Constitution is silent on whether this candidate meets the definition of “President elect” or “Vice President elect.” If the candidate with a majority of the electoral votes is considered “President elect,” even before the counting of electoral votes in Congress, Section 3 of the 20th Amendment applies. Section 3 of the 20th Amendment states that the Vice President elect will become President if the President elect dies or becomes incapacitated.
Islands) to vote for
HELP ASAP PLEASE
Which of the following is a benefit to children when their parents are involved in the
child's child care program?
A. Stronger social skills
B. Stronger language skills
C. Fewer behavioral problems
D. All of the above are true
Answers
Answer:
fewer behavioural problems
Nas is conducting his parents find out the fraction of people who blackout from GeForce is greater than six in early study population proportion was estimated to be 0.36 how large of a sample would be required in order to estimate the fraction of people who black out and six or more G force is at 80% the level of air most 0.04 round your answer to the next integer
Answers
Answer:
Give me a glass of water,?
A timeline is necessary
a.
For every goal
c.
For every life goal
b.
For every academic goal
d.
For every high school goal
Answers
Answer:
option A is the right answer
Prompt
Students who utilize the "read, underline and eliminate" strategy are more likely to get better test grades. Why do you think
this is so?
Answers
Define the term change ana state one negative change you may encouter as a student
Answers
Answer:
Explanation:
Change refers to the process of transitioning from one situation, condition, or state to another. It is a natural and constant phenomenon that occurs in various aspects of life, such as personal development, organizational growth, societal progress, and environmental shifts. Change can be voluntary or involuntary, planned or unplanned, positive or negative.
As a student, one negative change that you may encounter is academic setbacks or failure. This can happen when you are not able to meet your academic expectations, such as getting low grades or failing exams. Academic setbacks can be caused by various factors, such as lack of motivation, poor study habits, stress, anxiety, or health problems. They can be frustrating, demotivating, and impact your self-esteem and confidence. However, it's important to remember that setbacks are a natural part of the learning process and can provide opportunities for growth and improvement. It's essential to seek support, identify the root cause of the setback, and take action to address it.
From the video “Life Victorian Times”
What are five facts about the Rural Area/Poverty Class, that stood out for you, during the period?
Urgent!!!!
Answers
1 Many people in the rural areas worked as agricultural laborers and lived in poverty with large families crammed into small cottages.
2 The rural poor had limited access to healthcare and education, which resulted in high infant mortality rates and low literacy rates.
3 The living conditions in the rural areas were often unsanitary and unhygienic, with inadequate sewage and drainage systems.
4 Many rural families supplemented their income by taking in lodgers or performing piecework such as lace making or straw plaiting.
5 The workhouses were seen as a last resort for the rural poor, who would have to surrender their independence and live in harsh conditions in exchange for food and shelter.
Type the correct answer in the box. Spell all words correctly. Geoffrey sees that net-like blemishes have formed on his scanned Image. What filters can Geoffrey use to remove these blemishes? Geoffrey can use a (blank) filter to remove the blemishes.
Answers
Answer: Amaro filter
Explanation:
Amaro filter allows you to mask pesky blemishes that pop up in photos even though you've concealed them with makeup.
Geoffrey sees that net-like blemishes have formed on his scanned image. The filter that Geoffrey uses to remove these blemishes is the Amaro filter.
What is an amaro filter?Amaro filter is a filter that is used to make a thin filmed photo. It also makes the film gorgeous films Amaro films give light and focus on the images, and It corrects the darkens of edges.
Many filters have been discovered to improve image quality, and these are currently in use on phones and computers.
Thus, the filter that Geoffrey uses to remove these blemishes is the Amaro filter.
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Which of the following elements must be present on a fertilizer label?
iron
manganese
copper
potassium
Answers
Answer:
Potassium, Ive learned about this before. Goodluck!
Explanation:
What is the percentage of $33413.83 out of $183074 29
How do you get that percentage
Answers
Answer:
hey I think u missed a dot in between 74 and 29 if if there is a dot then the answer would be 18.25%
if there is not dot then u can simply get% by diving the smallee number with bigger number and multiplying it with 100
Over the last century (100 years), there were 100 months of September. Each month
of September had 30 days. For a study of climates, 200 days in September during the
past century are selected at random and the high temperature for the day is recorded
in the city of Ukiah. For these days, M = 81. 9 Fahrenheit, s = 7. 4 Fahrenheit. The
lowest temperature was 52 F and the highest was 107 F.
Your job is to describe the above situation one sentence at a time. Use each of the
following terms in a separate sentence to say something about the above situation.
Please write complete sentences. You should have a total of eight sentences, 2
points each.
1. Population
2. Sample
3. Measures of Central Tendency
4. Measures of Variability
5. Mean
6. Range
7. Standard Deviation
8. Variance
Answers
Answer:
Explanation:
The population in question consists of the high temperatures recorded in the city of Ukiah during 200 randomly selected days in September over the past century.
The sample size is 200 days in September with their respective high temperatures recorded in Ukiah over the past century.
The measures of central tendency for the sample are M = 81.9 Fahrenheit, which represents the mean high temperature for the 200 days.
The measures of variability for the sample include the range of temperatures recorded, from the lowest of 52 F to the highest of 107 F.
The mean high temperature for the 200 days is M = 81.9 Fahrenheit.
The range of high temperatures recorded in the sample is from the lowest of 52 F to the highest of 107 F.
The standard deviation for the sample is s = 7.4 Fahrenheit, which indicates the degree of variability of the high temperatures around the mean of 81.9 Fahrenheit.
The variance for the sample is s^2 = 54.76 Fahrenheit^2, which is the square of the standard deviation and measures the spread of the high temperatures from the mean.
Answer:
The population in question consists of the high temperatures recorded in the city of Ukiah during 200 randomly selected days in September over the past century.The sample size is 200 days in September with their respective high temperatures recorded in Ukiah over the past century.The measures of central tendency for the sample are M = 81.9 Fahrenheit, which represents the mean high temperature for the 200 days.The measures of variability for the sample include the range of temperatures recorded, from the lowest of 52 F to the highest of 107 F.The mean high temperature for the 200 days is M = 81.9 Fahrenheit.The range of high temperatures recorded in the sample is from the lowest of 52 F to the highest of 107 F.The standard deviation for the sample is s = 7.4 Fahrenheit, which indicates the degree of variability of the high temperatures around the mean of 81.9 Fahrenheit.The variance for the sample is s^2 = 54.76 Fahrenheit^2, which is the square of the standard deviation and measures the spread of the high temperatures from the mean.
Explanation:
EARLY CHILDHOOD- COMPLETE THE FOLLOWING SENTENCE
The quality of the relationships a child has with his parents has a very deep effect on early learning, including emotional regulation, cognitive _________ , motor skills and the ability to use language to communicate.
Answers
Answer:
i think it's creatively
who know ¿por qué constantinopla podía compararse con roma meaning
Answers
de ce constantinopolii puteau fi comparați cu Roma

Explanation:
hope this helps
Wild horse company is considering two different mutually exclusive capital expenditure proposals. Project A will cost $466,000, has an expected useful life of 13 years and a salvage value of zero, and is expected to increase net annual cash flows by $73,000. Project B will cost $311,000, has an expected useful life of 13years and a salvage value zero, and is expected to increase net annual cash flows by $51,000. A discount rate of 10% is appropriate for both Projects. Calculate the net present value and profitability index of each project
Answers
Which project should be accepted based on Net Present Value?
Project A should be accepted
How to solveProject A Project B
Estimated annual net cash flows (A) $74,600 $45,200
Present value of an ordinary annuity of $1 at 10% for 11 period (B) 6.49506 6.49506
Present Value of net annual cash flows (C) = (A) * (B) $4,84,531 $2,93,577
Initial Investment (D) $4,35,000 $2,53,000
Net Present Value (C) - (D)
(Present Value of annual cash flows - Initial Investment $49,531 $40,577
Profitability Index (C) / (D)
(Present Value of annual cash flows / Initial Investment) 1.11 1.16
Net Present value - Project A $49,531
Profitability Index - Project A 1.11
Net Present value - Project B $40,577
Profitability Index - Project B 1.16
Which project should be accepted based on Net Present Value?
Project A should be accepted
Which project should be accepted based on Profitability Index?
Project B should be accepted
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what should I consider in planning for my future career?
Answers
Answer:Well in my perspective, think about what your good at and what you want to do with your life. Don't let anyone tell you what to do and what to not do.
Explanation:
Help
I
Have
No
Idea
Of
What
To
Do
It
Is
Science
Answers
Use the drop-down menus to identify the career that matches the description.
Oversees the finances for an organization: TREASURER
Helps individuals create strategies for budgets, taxes, and investments: PERSONAL F/A
Manages the paperwork for buying and selling securities: BROKERAGE CLERK
Oversees a large number of combined investments: INVESTMENT FUND MANAGER
Answers
Answer:
Treasurers, personal financial advisor, brokerage clerk, investment fund manager.
Explanation:
I did on Edg 2021
Answer:
Treasurer, Personal Financial Advisor, Brokerage Clerk, Investment Fund Manager
Explanation:
Question 2
A driver's log provides an important security function to ensure which of the following?
All children are accounted for
The vehicle is only used for business purposes
Maintenance records of the vehicle are readily available
EDGE ASSESSMENT
A 5-point system check is conducted daily
Submitted
Answers
Answer:
The correct answer is "The vehicle is only used for business purposes". A driver's log is used to keep track of the use of the vehicle and ensure that it is being used only for business purposes, not for personal use. This is important for tax and insurance purposes.
Explanation: