Assignment 2: Problem 1 (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 107 89 95 110 102 117 75 81 121 97 Test B 109 88 95 108 107 114 74 82 123 98 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. Assume differences are normal. (Note: You may wish to use software.) (a) The test statistic is (at least 2 digits after the decimal) (b) The critical value is (at least 3 digits after the decimal) (c) Is there sufficient evidence to support the claim that people do better on the second test? O A. Yes O B. No (d) Now use a two sided hypothesis to construct a 95% confidence interval for the mean of the differences. Again, use (Test A - Test B) Use 3 digits after the decimal. UB O D. HO : HA = PB HA : PA # AB O E. Ho : HA = AB HA : HA HB (c) Find the value of the test statistic for this test, use at least one decimal in your answer. Test Statistic = (d) Determine the P-value of your statistical test in part (c), and report it to at least four decimal places. P = (e) At a = 0.05, this data suggested that the null hypothesis should There is between the delay in Airline A flights and Airline B flights. Preview My Answers Submit Answers