Question: Suppose that test scores have a distribution with = 72 and = 8. (a) Find a probability that an average score of 36 randomly selected

Suppose that test scores have a distribution with = 72 and = 8.

(a) Find a probability that an average score of 36 randomly selected students is between 68 and 73.

(b) Find a probability that an average score of 16 randomly selected students is between 68 and 73.

(c) How would your answer to (b) change if you knew that the distribution of scores was normal?

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