Part B

g) Based on 207 students' scores on the final examination in a course in finance, the following model was estimated by least squares.

Where: yi = 0 1 x 1i 2 x 2i 3 x 3i

y i = student's actual score on the examination.

x li = hours per week spent working on the course

x 2i = number of hours of sleep deprivation

x 3i = student's grade point average

The least squares estimate of the regression parameters were as follows:

b0=7.35, b1=3.369, b2=0.025, b3=3.054

Based on the information presented interpret the estimates b1, b2, b3