# Question

Compare the coefficient of determination (R2) for the regression model of Exercise 12.62 to the square of the correlation between sales and titles in Exercise 12.64. Compute the incremental F statistic for testing the null hypothesis that footage, Windows base, and Mac base add no predictive value given titles. Can this hypothesis be rejected at α = .01?

In exercise 12.62

In exercise 12.62

## Answer to relevant Questions

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