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Sales data were collected from a small bookstore. The following is an equation for the regression line of the data. Sales =8.56+0.913 NumberofSalespeopleWorking The assumptions

Sales data were collected from a small bookstore. The following is an equation for the regression line of the data.

Sales=8.56+0.913NumberofSalespeopleWorking

The assumptions and conditions for regression are?met, and from?technology, it is known that SEb1=0.0837 and se=1.498. Use the data to answer parts a through c.

Number of Salespeople Working Sales (in $1,000's) 8 12 14 20 11 18 11 21 13 21 17 22 17 25 19 25 X = 11.0 y = 18.6 SD(XX) = 5.96 SD(y) = 5.62

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