# Question: Compare the coefficient of determination R2 for the regression model

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

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