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2. A social worker conducted an 8-week assertiveness training workshop. Afterward the 14 clinets took the Door Manifest Assertiveness Test, which has a national mean of 24.0. Use the following data to construct a 95% confidence interval about the population mean from which your sample was drawn. Was the workshop effective? 24 25 31 25 33 29 21 22 23 32 27 29 30

2. A social worker conducted an 8-week assertiveness training workshop. Afterward the 14 clinets took the Door Manifest Assertiveness Test, which has a national mean of 24.0. Use the following data to construct a 95% confidence interval about the population mean from which your sample was drawn. Was the workshop effective? 24 25 31 25 33 29 21 22 23 32 27 29 30

MATLAB: An Introduction with Applications
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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I’m not sure how to solve number 2 to can someone help me with the steps to get my answer. It is working with confidence intervals.
Confidence Interval Homework 1. For a sample of 300 students, you find that the mean gpa is 3.35 with a standard deviation of .21. What is your best estimate range of the actual population gpa? 2. A social worker conducted an 8-week assertiveness training workshop. Afterward the 14 clinets took the Door Manifest Assertiveness Test, which has a national mean of 24.0. Use the following data to construct a 95% confidence interval about the population mean from which your sample was drawn. Was the workshop effective? 24 25 31 25 33 29 21 22 23 32 27 29 30 27 3. Airplane manufacturers use only slow-burning materials. For the plastic in coffee pots the maximum burn rate is 4 inches per minute. An engineer randomly sampled from a case of 120
Transcribed Image Text:Confidence Interval Homework 1. For a sample of 300 students, you find that the mean gpa is 3.35 with a standard deviation of .21. What is your best estimate range of the actual population gpa? 2. A social worker conducted an 8-week assertiveness training workshop. Afterward the 14 clinets took the Door Manifest Assertiveness Test, which has a national mean of 24.0. Use the following data to construct a 95% confidence interval about the population mean from which your sample was drawn. Was the workshop effective? 24 25 31 25 33 29 21 22 23 32 27 29 30 27 3. Airplane manufacturers use only slow-burning materials. For the plastic in coffee pots the maximum burn rate is 4 inches per minute. An engineer randomly sampled from a case of 120
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