9. This problem is to be solved using EXCEL. A person's muscle mass is expected to decrease with age. To explore this relationship in women, a nutritionist randomly selected four women from each 10-year age group, beginning with age 40 and ending with age 79. The results follow: X is age, and Y is a measure of muscle mass. 1': 1 2 3 4 5 6 7 8 9 10 X: 71 64 43 67 56 73 68 56 76 65 Y: 82 91 100 68 87 73 78 80 65 84 i: 11 12 13 14 15 16 X: 45 58 45 53 49 78 Y: 116 76 97 100 105 77 Perform a complete regression analysis using EXCEL to determine whether or not the simple linear regression model is appropriate for this data