Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

Suppose that the population of the number of hours slept by all college students the night before finals is approximately normally distributed. A report

image text in transcribed

Suppose that the population of the number of hours slept by all college students the night before finals is approximately normally distributed. A report claimed that the mean of this population is 6.07 hours. As a student wellness advocate, you want to test this claim, so you select a random sample of? 17 college students and record the number of hours each slept the night before finals. Follow the steps below to construct a 99% confidence interval for the population mean of all the numbers of hours slept by college students the night before finals. Then state whether the confidence interval you construct contradicts the report's claim. (If necessary, consult a list of formulas.) (a) Click on "Take Sample" to see the results for your random sample. Sample standard Number of students Sample mean Take Sample 17 6.508 deviation 1.339 Enter the values of the sample size, the point estimate of the mean, the sample standard deviation, and the critical value you need for your 99% confidence interval. (Choose the correct critical value from the table of critical values provided.) When you are done, select "Compute". Sample size: Point estimate: Standard error: Sample standard deviation: Critical values Margin of error: 10.005 -2.921 Critical value: 10.010-2.583 99% confidence interval: 10.025-2.120 Compute '0.050-1.746 0.100 1.337 (b) Based on your sample, graph the 99% confidence interval for the population mean of all the numbers of hours slept by college students the night before finals. Enter the values for the lower and upper limits on the graph to show your confidence interval. For the point (*), enter the claim 6.07 from the report. 99% confidence interval: (c) 0.000 0.000 2,000 4.000 5.000 10.000 6.000 8.000 10.000 Does the 99% confidence interval you constructed contradict the claim made in the report? Choose the best answer from the choices below. No, the confidence interval does not contradict the claim. The mean of 6.07 hours from the report is inside the 99% confidence interval. No, the confidence interval does not contradict the claim. The mean of 6.07 hours from the report is outside the 99% confidence interval. Yes, the confidence interval contradicts the claim. The mean of 6.07 hours from the report is inside the 99% confidence interval. Yes, the confidence interval contradicts the claim. The mean of 6.07 hours from the report is outside the 99% confidence interval.

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Statistical Inference

Authors: George Casella, Roger L. Berger

2nd edition

0534243126, 978-0534243128

More Books

Students also viewed these Mathematics questions

Question

Case : Karl and June Monroe

Answered: 1 week ago

Question

Describe two ways to edit a PowerPoint

Answered: 1 week ago

Question

the impact that outliers can have on measures of center and spread.

Answered: 1 week ago