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 B C D E F G H I J Test A 92 109 106 115 94 120 103 100 75 87 Test B 90 110 108 115 94 121 104 103 77 88 1. Consider (Test A - Test B). Use a 0.05 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) The test statistic is (b) The p-value is 2. Construct a 95% 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 B C D E F G H I J Test A 92 109 106 115 94 120 103 100 75 87 Test B 90 110 108 115 94 121 104 103 77 88 1. Consider (Test A - Test B). Use a 0.05 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) The test statistic is (b) The p-value is 2. Construct a 95% confidence interval for the mean of the differences. Again, use (Test A - Test B).
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 7E: List the sample space of each experiment. Selecting a letter of the alphabet
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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 | B | C | D | E | F | G | H | I | J |
Test A | 92 | 109 | 106 | 115 | 94 | 120 | 103 | 100 | 75 | 87 |
Test B | 90 | 110 | 108 | 115 | 94 | 121 | 104 | 103 | 77 | 88 |
1. Consider (Test A - Test B). Use a 0.05 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) The test statistic is
(b) The p-value is
2. Construct a 95% confidence interval for the mean of the differences. Again, use (Test A - Test B).
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