# Use the following information from a multiple regression analysis: n = 20 b1 = 4 b2 = 3 Sb1 = 1.2 Sb2 = 0.8 i. Which variable has the largest slope, in units of a t statistic? ii. Construct a

Use the following information from a multiple regression analysis:

n = 20 b1 = 4 b2 = 3 Sb1 = 1.2 Sb2 = 0.8

i. Which variable has the largest slope, in units of a t statistic?

ii. Construct a 95% confidence interval estimate of the population slope, β1.

iii. 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. Explain.

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## Basic Business Statistics Concepts And Applications

**ISBN:** 9780132168380

12th Edition

**Authors:** Mark L. Berenson, David M. Levine, Timothy C. Krehbiel

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