Ten randomly selected people took an IQ test A, and next day they took a very similar IQ test Their scores are shown in the table below. Person A a C D E F G H I J TestA 10492 127 85 117 7895 10497 108 Testa 10692 12886 113 7898 10397 109 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? O A. Two Sample z @ B. Matched Pairs O C. Two Sample t (b) The test statistic is (c) The critical value is -0.5023 22621 (d) Is there sufficient evidence to support the claim that people do better on the second test? No 0B. Yes 2 Construct a 95% confidence interval for the mean of the differences. Again, use (Test A- Test B).