Q The table below presents data concerning the amount of sales and the amount spent for advertising for 10 firms. Sales (00-AUS$) 1890 Advertising _(AUSS) 350 1710 350 2000 250 1825 2007 1120 2212 351 225 440 231 2147 3040 262 96.9 350 1650 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 $250. c) Calculate the Coefficient of Correlation “r" d) Test for significance of regression by ANOVA.
Q The table below presents data concerning the amount of sales and the amount spent for advertising for 10 firms. Sales (00-AUS$) 1890 Advertising _(AUSS) 350 1710 350 2000 250 1825 2007 1120 2212 351 225 440 231 2147 3040 262 96.9 350 1650 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.
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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