Question

Ages (x) pod essure 56 42 36 47 49 42 60 63 55

blood pressure (Y) 147 125 118 128 145 140 155 160 140 150
a. Determine the least square regression equation of Y on X.
b. Estimate the blood pressure of a woman whose age is 45 years. 72 160​

Answer 1

Explanation:

a. The least square regression equation of Y on X is: Y = 3.08X - 127.82

b. To estimate the blood pressure of a woman whose age is 45 years, we can use the least square regression equation above. Substituting X = 45, we get: Y = 3.08(45) - 127.82 = 143.46. Therefore, the estimated blood pressure of a woman whose age is 45 years is 143.46.