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(Solution) - Using the data from Problem 2 in Chapter 5 and or

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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

Regression of SBP on QUET: Smokers

 







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