Answered: Describe a quality control chart and…

Foundations of Business (MindTap Course List)

6th Edition

ISBN:9781337386920

Author:William M. Pride, Robert J. Hughes, Jack R. Kapoor

Publisher:William M. Pride, Robert J. Hughes, Jack R. Kapoor

Chapter11: Building Customer Relationships Through Effective Marketing

Section11.10A: Consumer Buying Behavior

Problem 2CC

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The owner of a restaurant in Bloomington, Indiana, has recorded sales data for the past 19 years. He has also recorded data on potentially relevant variables. The data are listed in the file P13_17.xlsx. a. Estimate a simple regression equation involving annual sales (the dependent variable) and the size of the population residing within 10 miles of the restaurant (the explanatory variable). Interpret R-square for this regression. b. Add another explanatory variableannual advertising expendituresto the regression equation in part a. Estimate and interpret this expanded equation. How does the R-square value for this multiple regression equation compare to that of the simple regression equation estimated in part a? Explain any difference between the two R-square values. How can you use the adjusted R-squares for a comparison of the two equations? c. Add one more explanatory variable to the multiple regression equation estimated in part b. In particular, estimate and interpret the coefficients of a multiple regression equation that includes the previous years advertising expenditure. How does the inclusion of this third explanatory variable affect the R-square, compared to the corresponding values for the equation of part b? Explain any changes in this value. What does the adjusted R-square for the new equation tell you?

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Describe a quality control chart and how it can be used.What are upper and lower control limits? What does it mean if anobservation falls outside the control limits?