55 5x where Youve computed the following least squares reg

= 55 + 5x where You\'ve computed the following least squares regression line using a sample of college students x- hours of study per day y - test score (ranges from 0 to 100) Using this equation, which is the predicted test score for an individual who studies 8 hours a day? 68 O 63 O 85 O 95 O Can\'t be determined

Solution

The predicted test score is:

Y^=55+5*8=95

The answer is extrapolation.

Residuals follow a linear pattern.