Using the data of Problem I 5.4 on page 581, stored in DomesticBeer perform a square-root transformation

Question:

Using the data of Problem I 5.4 on page 581, stored in DomesticBeer perform a square-root transformation on each of the independent variables (percentage alcohol and number of carbohydrates). Using calories as the dependent variable and the transformed independent variables, perform a multiple regression analysis.
a. State the regression equation.
b. Perform a residual analysis of the results and determine whether the regression model is valid.
c. At the 0.05 level of significance, is there a significant relationship between calories and the square root of the percentage of alcohol and the square root of the number of carbohydrates?
d. Interpret the meaning of the coefficient of determination, r2, in this problem.
e. Compute the adjusted r2.
f. Compare your results with those in Problem 15.4. Which model is better? Why?
Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question

Statistics For Managers Using Microsoft Excel

ISBN: 772

7th Edition

Authors: David M. Levine, David F. Stephan, Kathryn A. Szabat

Question Posted: