Please find Construct the 80% confidence interval. Step by step Based on the confidence interval, is it reasonable to believe that the proportion of college graduates among women who work at home is the same as the proportion of college graduates among men who work at home? Explain. Working at home: According to the U.S. Census Bureau, 33% of men who worked at home were college graduates. In a sample of 474 womenwho worked at home, 155 were college graduates.Part 1 of 3(a) Find a point estimate for the proportion of college graduates among women who work at home. Round the answer to at least threedecimal places.The point estimate for the proportion of college graduates among women who work at home is 0.327Part: 1 / 3Part 2 of 3(b) Construct an 80% confidence interval for the proportion of women who work at home who are college graduates. Round the answer to atleast three decimal places.An 80% confidence interval for the proportion of women who work at home isX

Given: The value of n is 474. The point estimate for the proportion of college graduates among the…

find Construct the 80% confidence interval. Step by step Based on the confidence interval, is it reasonable to believe that the proportion of college graduates among women who work at home is the same as the proportion of college graduates among men who work at home? Explain.

find Construct the 80% confidence interval. Step by step Based on the confidence interval, is it reasonable to believe that the proportion of college graduates among women who work at home is the same as the proportion of college graduates among men who work at home? Explain.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: 2. Why do we feel more confident with a 99 percent confidence interval than a 90 percent confidence…

A: It is needed to define the reason for being more confident for a 99% confidence interval than a 90%…

Q: Isabel Myers was a pioneer in the study of personality types. According to one of her surveys, in a…

A: Solution

Q: Explain in what situations you can use the z statistic to construct a confidence interval for the…

Q: When you construct a 95% confidence interval, what are you 95% confident about?

A: Confidence intervals: Confidence intervals are the limits for the point estimate of population…

Q: Give a real life example of how confidence intervals are used.

A: Solution-: We want to get a real life example of how confidence intervals are used.

Q: What is a Confidence Level? what is one example of the use of the Confidence Interval?

A: A level of confidence refers to the percentage of all possible samples which the true population…

Q: The relationship between confidence interval and hypothesis testing is very close. Do you agree?…

A: Yes, the relationship between confidence interval and hypothesis testing is very close. Generally,…

Q: Explain in words what effect an increase in confidence level would have on the width of the…

A: Given information: The statement is given related to the effect of an increase in confidence level…

Q: What is the likelihood that a 90% confidence interval will not cover the true population value?…

Q: Illustrate the formula for the confidence interval?

A: confidence interval is defined as a range of values so defined that there is a specified probability…

Q: margin of error for a 95% confidence interval is approximately 2 times the standard error. True…

A: The standard error can be calculated as: SE=σnorSE=sn Here, σ or s = Standard deviation n = Sample…

Q: We surveyed 45 people in an attempt to determine the proportion of Americans who lease a vehicle. 15…

A: Formula :

Q: If a 95% confidence interval contains 0, so will the 99% confidence interval. True False3

A: Solution: As the confidence level increases the margin of error increases. This leads to the…

Q: What is the impact of changing from the 95% confidence interval to the 90% confidence interval? The…

A: Confidence Interval Confidence Interval refers to the range of the value that we expect our estimate…

Q: What proportion of your confidence intervals include the true population mean? Is this proportion…

A: Consider a confidence interval of 95%. That is, the proportion that the confidence interval will…

Q: oning in

A: To determine if the confidence interval supports the claim, check if the claimed population…

Q: What formulas are used to find the confidence interval? Researchers comparing the effectiveness of…

A: According to the given information in this questionWe need to construct 95% confidence interval

Q: The width of a confidence interval is a measure of its precision. The narrower the confidence…

A: The width of the confidence interval of a single population mean can be calculated using the…

Q: The higher the level of significance is, the lower the level of confidence True False

A: We have to find out startment is true or false...

Q: "Calculating a confidence interval provides you with an indication of how reliable your sample mean…

A: The degree of confidence is the likelihood that the confidence interval will include the true mean…

Q: Cough and Headache At the 98% confidence level, should be nurse inform the managers that their…

A: The number of sampled patients that complained of cough and headache, n=230.The number of patients…

Q: What is the effect of increasing the confidence level on the margin of error?

A: The formula for calculating the margin of error is, The margin of error is directly proportional…

Q: Explain when you would use the z value or the t-value to calculate a confidence interval

A: Z value: The z value is used for finding the confidence intervals for single population proportion,…

Q: Consider a drug that is used to help prevent blood clots in certain patients. In clinical trials,…

A: Note: As per our guidelines, we can answer only first question. Kindly re-post the other questions…

Q: What does the 95% represent in a 95% confidence interval

A: Solution CI=95%

Q: What is the difference between a prediction interval and a confidence interval? And when is it…

A: Confidence Interval : Confidence intervals tell you how well you have determined a parameter of…

Q: Several years ago, 50% of parents who had children in grades K-12 were satisfied with the quality of…

A: Given Data Sample Size, n = 1105 Number of successes, x = 491.0 confidence…

Q: How can we interpret a 95% confidence interval?

A: How to interpret a 95% confidence Interval? We know that, Confidence Interval is defined as the…

Q: A psychologist asked a random sample to complete a depression questionnaire. On average, children…

A: The 95% confidence interval for the population mean depression score of children, will signify that,…

Q: What would answer be at 99% confidence interval?

A: We have given that, Sample proportion (p̂) = 64% = 0.64 and sample size (n) = 550 Then, We will…

Q: What is the effect on the size of the confidence interval if a T score is used instead of a Z score?…

A: The formula for calculating confidence interval using Z score is as follow:

Q: What is the effect on a confidence interval if one decreases both sample size and the level of…

Q: The 95% confidence interval for the mean contains the sample mean with 95% certainty.TrueFalse

A: The confidence interval provides us a different range at different levels of significance. Since,…

Q: A psychologist asked a random sample to complete a depression questionnaire. On average, children…

A: We assume the population is normally distributed.

Q: Treating the 2015 Tobacco rate data as a sample, construct a 95% confidence interval for the mean…

A: As per guidelines we will solve first question only, please repost other questions for more answers.…

Q: You want to construct a 99% confidence interval for the proportion of retail stores that went out of…

A: The CI for the population proportion, p^±Zp^ (1-p^)nwhere, p^=sample proportion…

Q: What is the correct answer? The change in confidence level (increase, decrease, does not change,…

A: We want to tell you which one is the correct choice

Q: n a recent Zogby International Poll, nine of 48 respondents rated the likelihood of a terrorist…

A: Given that : x = 9 n = 48

Question

Please find Construct the 80% confidence interval. Step by step

Based on the confidence interval, is it reasonable to believe that the proportion of college graduates among women who work at home is the same as the proportion of college graduates among men who work at home? Explain.

Working at home: According to the U.S. Census Bureau, 33% of men who worked at home were college graduates. In a sample of 474 women
who worked at home, 155 were college graduates.
Part 1 of 3
(a) Find a point estimate for the proportion of college graduates among women who work at home. Round the answer to at least three
decimal places.
The point estimate for the proportion of college graduates among women who work at home is 0.327
Part: 1 / 3
Part 2 of 3
(b) Construct an 80% confidence interval for the proportion of women who work at home who are college graduates. Round the answer to at
least three decimal places.
An 80% confidence interval for the proportion of women who work at home is
X
<p<
Ś

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

A study was conducted for your company to see whether your clients would recommend the company to other people. A sample of 400 clients was taken and the researcher found that 100 people would recommend the company to others. Calculate a 95% confidence interval for the proportion of clients that would recommend the company.
Get an education: In 2012 the General Social Survey asked 844 adults how many years of education they had. The sample mean was 8.54 years with a standard deviation of 8.58 years.
Describe how a Confidence Interval might be a better piece of information to report from a study than a hypothesis test.
What is the relationship between confidence intervals and hypothesis tests?
Suppose the English department of a local university has a total of 105 faculty members. Of this number, 24 (about 23%) are part-time instructors. Is it appropriate to find a confidence interval for the percentage of part-time instructors in the department? Find a 95% confidence interval or explain why you should not find a confidence interval for the percentage of part-time instructors in the English department.
What is the t-value for a 90% confidence interval given that the sample size is 26? Write the exact answer.
How can you make a 95% confidence interval smaller without changing the confidence level?
Explain the concept of a 95% confidence interval for the population mean ? by listing (and explaining) 5characteristics of a confidence interval.
a critic points out that this 95 % confidence interval is only accurate if the statistic follows a normal distrubution , or if the normal model is a good approximation. is this true for this data? explain
How do you find a 99 percent confidence interval?
Public Policy Polling recently conducted a survey asking adults across the U.S. about music preferences. When asked, 80 of the 571 participants admitted that they have illegally downloaded music. Without performing any calculations, describe how the confidence interval would change if the confidence level changed from 99% to 90%.