1) A professor is studying exam scores. As part of the study, the professor takes a sample of 25 exams and records the score. The data appear in the Exams worksheet of the Quiz 2 Review Problems data workbook on Moodle. a) Estimate o' using a 95% confidence interval. b) State the Hypothesis to show the variance in exam score is different than 64. c) Choose a level of a. Use a = 0.05 for this problem. d) Sketch the sampling distribution. Include the critical value and test statistic e) Draw a conclusion and report that in the problem context. f) Calculate the p-value for the hypothesis test Score 80 73 81 78 88 79 77 84 62 70 69 75 84 77 75 71 65 79 68 85 74 52 70 77 84

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