Part: 2/5Part 3 of 5(c) Compute the P-value. Round the answer to at least four decimal places.P-value=XŚ Weight loss: In a study to determine whether counseling could help people lose weight, a sample of people experienced a group-based behavioral intervention,which involved weekly meetings with a trained interventionist for a period of six months. The following data are the numbers of pounds lost for 14 people.Assume the population is approximately normal. Perform a hypothesis test to determine whether the mean weight loss is greater than 13 pounds. Use thea = 0.05 level of significance and the P-value method with the TI-84 Plus calculator.21.2 27.5 6.5 22.8 20 11.516.219.7 36.3 32.5 11.1 34.8 22.4 17.9Send data to ExcelPart 1 of 5(a) State the appropriate null and alternate hypotheses.Ho: u = 13Hy: μ > 13This hypothesis test is a right-tailedPart 2 of 5test.(b) Compute the value of the test statistic. Round the answer to at least three decimal places.1=1 342X8 民團。A4

a) The claim is that the mean weight loss is greater than 13 pounds.

Answered: Weight loss: In a study to determine…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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When a t-test is used to compare pre- and post-treatment data. What does the t-test reveal about the difference between baseline and treatment?
How much customers buy is a direct result of how much time they spend in the store. A study of average shopping times in a large national houseware store gave the following information (Source: Why We Buy: The Science of Shopping by P. Underhill). Women with female companion: 8.3 min.Women with male companion: 4.5 min. Suppose you want to set up a statistical test to challenge the claim that a woman with a female friend spends an average of 8.3 minutes shopping in such a store. (a) What would you use for the null and alternate hypotheses if you believe the average shopping time is less than 8.3 minutes? Ho: ? = 8.3; H1: ? ≠ 8.3Ho: ? < 8.3; H1: ? = 8.3 Ho: ? = 8.3; H1: ? < 8.3Ho: ? = 8.3; H1: ? > 8.3 Is this a right-tailed, left-tailed, or two-tailed test? right-tailedtwo-tailed left-tailed (b) What would you use for the null and alternate hypotheses if you believe the average shopping time is different from 8.3 minutes? Ho: ? = 8.3; H1: ? > 8.3Ho: ? ≠ 8.3; H1: ? = 8.3…
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