please help me with the following questions thank you!

(2 pts) 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. Person123 4 5 678910 TestA TestB 11493112103126110 971037585 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 a software program, such as Excel, to compute the differences, sample mean difference, and sample standard deviation of differences.) (a) What test method should be used? A A. Two independent samples t o B. Paired data t A C. Two independent samples 2 (b) The test statistic is (c) The critical value is 1.86 (d) Is there sufficient evidence to support the claim that people do better on the second test? A A. Yes 0 B. No 2. Construct a 95 % confidence interval for the mean of the differences. Again, use (Test A Test B).