Find the regression line predicting sales from no of people

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Reference no: EM13634351

The accompanying data show the number of people working and the sales for a small bookstore. The regression line is given below. The bookstore decides to have a gala event in an attempt to drum up business. They hire 98 employees for the day and bring in a total of $41,000.

sales^ = 8.097+0.902 No. of salespeople working

No. of salespeople working Sales (in$1000's)
2 9
3 12
7 13
10 15
10 18
9 18
13 21
14 21
16 22
18 24


mean (x)=10.2 mean (y) =17.3
SD(x)= 5.25 SD(y)= 4.90

A) Find the regression line predicting sales from no. of people working with the new point added.

B) Find the residual of the new point?

Reference no: EM13634351

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