Q The table below presents data concerning the amount of sales and the amount spent foradvertising for 10 firms.Advertising(AUSS)350Sales(00-AUS$)18901710350200025018253512007225112044022122312147262304096.91650350a) Fit a simple linear regression model relating the amount of sales to the amountthat is spent for advertising.b) Estimate the mean amount of sales at an advertising of $250 (AUS$).Then,calculate the residual for the value of advertising of $250.c) Calculate the Coefficient of Correlation "r"d) Test for significance of regression by ANOVA.

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The table below presents data concerning the amount of sales and the amount spent f advertising for 10 firms. Sales Advertising (00 AUSS) (AUSS)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.6: Regression And Median-fit Lines

Problem 6PPS

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Question

Q The table below presents data concerning the amount of sales and the amount spent for
advertising for 10 firms.
Advertising
(AUSS)
350
Sales
(00-AUS$)
1890
1710
350
2000
250
1825
351
2007
225
1120
440
2212
231
2147
262
3040
96.9
1650
350
a) Fit a simple linear regression model relating the amount of sales to the amount
that is spent for advertising.
b) Estimate the mean amount of sales at an advertising of $250 (AUS$).Then,
calculate the residual for the value of advertising of $250.
c) Calculate the Coefficient of Correlation "r"
d) Test for significance of regression by ANOVA.

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