In a simple linear regression problem, the least squares line is y' = -3.2 + 1.3X, and the coefficient of determination is 0.7225. The coefficient of correlation must be 0.85.

True

False

Quiz 5 MATH302

If there is no linear relationship between two variables X and Y, the coefficient of determination, R²,must be 1.0.

True

False

Quiz 5 MATH302

When testing the equality of two population variances, the test statistic is the ratio of the population variances; namely .

True

False