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In Spring 2016 data were collected from STAT200 students concerning their heights (in inches) and their shoe sizes. A regression model was constructed using height to predict shoe size. Using Y to symbolize shoe size and X to symbolize height (in inches):
Y^ = -14.5619 + 0.3540(X)
One student reported being 69.0 inches tall and having a 9.0 shoe size. Using this regression model, what is the residual for this individual?
A) -1.8500
B) +1.8500
C) -0.8641
D) +0.8641
Assuming that = 119.5 ng.ml, test the claim that the mean cotinine level of all smokers is equal to 200.0 ng/ml. Use a 0.05 significance level.
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