You used sales and number of orders to predict distribution costs at a mail-order catalog business (stored
Question:
a. Construct a 95% confidence interval estimate of the population slope between distribution cost and sales.
b. At the 0.05 level of significance, determine whether each independent variable makes a significant contribution to the regression model. On the basis of these results, indicate the independent variables to include in this model.
For Information: Problem 14.4
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Related Book For
Statistics For Managers Using Microsoft Excel
ISBN: 772
7th Edition
Authors: David M. Levine, David F. Stephan, Kathryn A. Szabat
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