MAT 133 Final Exam (SP22), p.7 9. (7pts) The table shows the weights of boxes of cereal, in ounces. The following data come from a population that is normally distributed. Cereal Weight 14.01 13.96 14.13 14.15 14.10 14.02 14.15 13.97 14.05 14.04 14.11 14.12 (oz) a. (6pts) Based on these data, construct a 96% confidence interval for the average MPGe (assume all requirements are met). (Show formula, substitution, and result. Use 4 dec. places) b. (1pt) A quality control manager is concerned that the mean weight is actually less than 14 ounces. Does the above confidence interval support or contradict his claim? (Circle the best choice) Support, since 14 is Support, since 14 is Contradict, since 14 is Contradict, since 14 is below the interval within the interval within the interval below the interval 10. (2pts) A researcher carried out an hypothesis test using a two-tailed alternative hypothesis. Which of the following test statistics is associated with the smallest P-value? (Circle one) Zo = -1.76 Zo = -1.24 Zo = 2.10 Zo = 0.88