(2 points) 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 CD E F G H J Test A 88 100 86 78 103 123 109 107 119 94 Test B 89 103 86 77 108 125 114 112 115 97 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? O A. Two Sample z O B. Matched Pairs O C. Two Sample t (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? O A. Yes O B. No 2. Construct a 99% confidence interval for the mean of the differences. Again, use (Test A - Test B).