EP BASIC BUS.STATS-ACCESS (18 WEEKS)
EP BASIC BUS.STATS-ACCESS (18 WEEKS)
14th Edition
ISBN: 9780135989005
Author: BERENSON
Publisher: PEARSON CO
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Chapter 15, Problem 11PS

Using the data of Problem 15.4 on page 600, stored in DomesticBeer, Perform a natural logarithmic transformation of the dependent variables (calories). Using the transformed dependent variable and the percentage of alcohol and the number of carbohydrates as the independent variables, perform a multiple regression analysis.

a. State the regression equation.

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

c. At the 0.05 level of significance, is there a significant relationship between the natural logarithm of calories and the percentage of alcohol and the number of carbohydrates?

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

e. Compute the adjusted r 2 .

f. Compare your results with those in Problem 15.4 and 15.10. Which is best? Why?

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EP BASIC BUS.STATS-ACCESS (18 WEEKS)

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