Question: 11. For Exam 1 in a different class, the mean grade was an 81% with a standard deviation of 18%. (a) What would be the

11. For Exam 1 in a different class, the mean grade was an 81% with a standard deviation of 18%. (a) What would be the z-score for the student who earned 100%? (b) Fill in the normal distribution curve for the exam grade. Using the Empirical Rule, determine what percentage of students likely earned grades above 63%. (c) Construct a 95% confidence interval for the mean exam grade assuming a class size of 20 students

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