Probability and Statistics for Engineers and Scientists
Probability and Statistics for Engineers and Scientists
9th Edition
ISBN: 9780321629111
Author: Ronald E. Walpole, Raymond H. Myers, Sharon L. Myers, Keying Ye
Publisher: Prentice Hall
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Chapter 11.3, Problem 9E

(a)

To determine

Construct a scatter diagram.

(b)

To determine

Find the equation of the regression line to predict weekly sales from advertising expenditures.

(c)

To determine

Find the weekly sales when advertising costs are $35.

(d)

To determine

Construct the residual plot by taking residuals versus the advertising costs.

Interpret the residual plot.

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