Basic Business Statistics, Student Value Edition
Basic Business Statistics, Student Value Edition
14th Edition
ISBN: 9780134685113
Author: Mark L. Berenson, David M. Levine, David F. Stephan, Kathryn Szabat
Publisher: PEARSON
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Chapter 15, Problem 12PS

Using the data of Problem 15.6 on page 601, stored in HondaPrices, Perform a natural logarithm transformation of the dependent variables (prices). Using the transformed dependent variable and the age as the independent variables, perform a regression analysis.

a. State the regression equation.

b. Predict the mean price for a five-year-old Honda Civic LX.

c. Perform a residual analysis of the results and determine whether the regression assumptions are valid.

d. At The 0.05 level of significance, is there a significant relationship between the natural logarithm of price and age?

e. Interpret the meaning of the coefficient of determination. r 2 , in this problem.

f. Compare the adjusted r 2 .

g. Compare your results with those in Problem 15.6. Which model is better? Why?

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Basic Business Statistics, Student Value Edition

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