# A trucking company wants to predict the yearly maintenance expense (Y) for a truck using the number

## Question:

a. Estimate a multiple regression equation using the given data. Interpret each of the estimated regression coefficients. Why is the magnitude of the Miles Driven coefficient so much lower than the magnitude of the Age of Truck coefficient? Is it because Miles Driven is not as important in predicting Maintenance Expense?

b. Interpret the standard error of estimate se and R2 for these data.

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**Related Book For**

## Data Analysis and Decision Making

**ISBN:** 978-0538476126

4th edition

**Authors:** Christian Albright, Wayne Winston, Christopher Zappe