In: Statistics and Probability
This problem is to be solved by hand.
The weight and systolic blood pressure of 12 randomly selected males in the age group 25-30 are shown in the table below.
Subject 1 2 3 4 5 6 7 8 9 10 11 12
Weight (lbs), x 165 167 180 165 212 175 190 212 200 149 158 169
Systolic BP, y 130 133 150 128 151 146 150 140 148 125 133 135
(e) Test for significance of regression coefficient using the two-sided t-test and a = 0.05.
(f) Construct an analysis of variance table and use it to perform the hypothesis test of part (e). Restate the null and alternative hypotheses and interpret your results.
(g) Perform a residual analysis on the data.
(h) Summarize your analysis of parts (a)-(g) in paragraph form to determine the appropriateness of the model.