# Question: Here are the data from the small bookstore we saw

Here are the data from the small bookstore we saw in chapter 15, Exercise,

The regression line is:

Sales = 8.10 + 0.913 number of sales people working and we can assume that the assumptions and conditions for regression are met. Calculations with technology find that se = 1.477.

a) Find the predicted sales on a day with 500 employees working.

b) Is this prediction likely to be useful? Explain.

The regression line is:

Sales = 8.10 + 0.913 number of sales people working and we can assume that the assumptions and conditions for regression are met. Calculations with technology find that se = 1.477.

a) Find the predicted sales on a day with 500 employees working.

b) Is this prediction likely to be useful? Explain.

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