Answer Happy

(1 point) 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 95 119 76 82 92 97 101 116 111 108 Test B 99 120 75 83 90 96 102 115 108 108 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. Two Samplet B. Matched Pairs 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 B. Yes 2. Construct a 99% confidence interval for the mean of the differences. Again, use (Test A - Test B). <i<