Using the data from Problem 2 in Chapter 5 and/or the SAS output given here, answer the

Question:

Using the data from Problem 2 in Chapter 5 and/or the SAS output given here, answer the following questions about the separate straight-line regressions of SBP on QUET for smokers (SMK = 1) and nonsmokers (SMK = 0).
a. Determine the least-squares line of SBP (Y) on QUET (X) separately for smokers and nonsmokers.
b. Test H0: “The slopes are the same for the populations of smokers and nonsmokers being sampled” versus HA: “Nonsmokers have a more positive slope.”
c. Test H0: “The intercepts are the same for the populations of smokers and nonsmokers being sampled” versus HA: “The intercepts are dif1rent.”
d. Test H0: “The straight lines coincide for the populations of smokers and nonsmokers being sampled” versus HA: “The straight lines do not coincide.”
Regression of SBP on QUET: Nonsmokers