Solutions Statistics

Refer to Exercise 14. Number of Contacts, X Sales ($ thousands), Y Number of Contacts, X Sa

Question: Refer to Exercise 14.

Number of Contacts, X Sales ($ thousands), Y Number of Contacts, X Sales ($ thousands), Y
14 24 23 30
12 14 48 90
20 28 50 85
16 30 55 120
46 80 50 110

A. Determine the standard error of estimate.

B. Suppose a large sample is selected (instead of just 10). About 95 percent of the predictions regarding sales would occur between what two values?

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