# Question: Refer to Exercise 16 a Determine the 95 confidence interval

Refer to Exercise 16.

a. Determine the .95 confidence interval, in thousands of dollars, for the mean of all sales personnel who make 40 contacts.

b. Determine the .95 prediction interval, in thousands of dollars, for a particular salesperson who makes 40 contacts.

a. Determine the .95 confidence interval, in thousands of dollars, for the mean of all sales personnel who make 40 contacts.

b. Determine the .95 prediction interval, in thousands of dollars, for a particular salesperson who makes 40 contacts.

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