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Ten randomly selected people took an IQ test A, and next day they took a very similar IQ test B. Their scores are shown in the table below. Person A BC DEFGHIJ Test A 86 100 73 109 90 95 96 104 125 118 Test B 85 102 71 111 87 93 96 105 126 114 1. Consider (Test A - Test B). Use a 0.01 significance level to test the claim that people do better on the second test than they do on the first. (Note: You may wish to use software.) (a) What test method should be used? OA. Matched Pairs OB. Two Sample t OC. Two Sample z (b) The test statistic is (c) The critical value is (d) Is there sufficient evidence to support the claim that people do better on the second test? OA. No OB. Yes 2. Construct a 99% confidence interval for the mean of the differences. Again, use (Test A - Test B).

Ten randomly selected people took an IQ test A, and next day they took a very similar IQ test B. Their scores are shown in the table below. Person A BC DEFGHIJ Test A 86 100 73 109 90 95 96 104 125 118 Test B 85 102 71 111 87 93 96 105 126 114 1. Consider (Test A - Test B). Use a 0.01 significance level to test the claim that people do better on the second test than they do on the first. (Note: You may wish to use software.) (a) What test method should be used? OA. Matched Pairs OB. Two Sample t OC. Two Sample z (b) The test statistic is (c) The critical value is (d) Is there sufficient evidence to support the claim that people do better on the second test? OA. No OB. Yes 2. Construct a 99% confidence interval for the mean of the differences. Again, use (Test A - Test B).

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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Ten randomly selected people took an IQ test A, and next day they took a very similar IQ test B. Their scores are shown in the table below. Person A BC DEFGHIJ Test A 86 100 73 109 90 95 96 104 125 118 Test B 85 102 71 111 87 93 96 105 126 114 1. Consider (Test A - Test B). Use a 0.01 significance level to test the claim that people do better on the second test than they do on the first. (Note: You may wish to use software.) (a) What test method should be used? A. Matched Pairs B. Two Sample t C. Two Sample z (b) The test statistic is (C) The critical value is (d) Is there sufficient evidence to support the claim that people do better on the second test? A. No В. Yes 2. Construct a 99% confidence interval for the mean of the differences. Again, use (Test A - Test B).
Transcribed Image Text:Ten randomly selected people took an IQ test A, and next day they took a very similar IQ test B. Their scores are shown in the table below. Person A BC DEFGHIJ Test A 86 100 73 109 90 95 96 104 125 118 Test B 85 102 71 111 87 93 96 105 126 114 1. Consider (Test A - Test B). Use a 0.01 significance level to test the claim that people do better on the second test than they do on the first. (Note: You may wish to use software.) (a) What test method should be used? A. Matched Pairs B. Two Sample t C. Two Sample z (b) The test statistic is (C) The critical value is (d) Is there sufficient evidence to support the claim that people do better on the second test? A. No В. Yes 2. Construct a 99% confidence interval for the mean of the differences. Again, use (Test A - Test B).
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