Section 9.2: Linear Regression (References: example 1 - 3 pages 514 - 516; end o
ID: 2952746 • Letter: S
Question
Section 9.2: Linear Regression
(References: example 1 - 3 pages 514 - 516; end ofsection exercises 13 -22 pages 518 - 520)
4. A manager wishes to determine the relationshipbetween the number of miles (in hundreds of miles)the manager’s sales representative’s travel per monthand the amount of sales (in thousands of dollars)per month.
Miles traveled, x
5
6
13
10
11
18
6
4
14
Sales, y
41
43
88
72
75
71
58
65
130
Use the table developed in #2.
x
y
xy
x^2
y^2
5
41
6
43
13
88
10
72
11
75
18
71
6
58
4
65
14
130
a. Find the equation of the regression line for the given data.Round the line values to the nearest two decimalplaces. Show your work.
b. Using the equation found in part a,predict the sales when the miles traveled is 1500. Round to thenearest thousand in sales.
(Rememberto express 1500 miles in hundreds)
Miles traveled, x
5
6
13
10
11
18
6
4
14
Sales, y
41
43
88
72
75
71
58
65
130
Explanation / Answer
Section 9.2: Linear Regression (References: example 1 - 3 pages 514 - 516; end o
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