Run a regression analysis on the following data set where y is the final grade in a math class and z is the average number of hours the student spent working on math each week hours week Grade State the rea 6 6 7 8 11 12 14 17 20 20 y 61 4 55 4 64 8 72 2 66 4 75 8 79 6 89 8 100 100