(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 ABCDEFGHIJ Test A 87 73 101 122 99 90 111 96 107 119 Test B 8872 102 124 98 91 108 95 106 120 (You should be able to copy and paste the data into Sheets or Excel. If it doesn't copy correctly then try the special paste options.) 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) What test method should be used? OA.-Two Sample z test OB. Two Sample t test OC. Matched Pairs t test (b) The test statistic is (c) Is there sufficient evidence to support the claim that people do better on the second test? OA. No B. Yes 2. Construct a 95% confidence interval for the mean of the differences. Again, use (Test A - Test B).