1. The director of marketing at Reeves Wholesale Products is studying monthly sales. Three independent variables were selected as estimators of sales:
x1 = regional population
X2 = per capita income
X3 = regional unemployment rate
The following regression equation was computed to predict sales dollars:
a. Why is this analysis called multiple regression analysis?
b. Interpret the regression coefficient, 9.6.
c. Interpret the regression coefficient. -11,600.
d. What are the estimated monthly sales for a particular region with a population of 796,000, per capita income of $6,940, and an unemployment rate of 6.0%?
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