Question 1 - Body fat, again. Use the data from Question 2 to examine the association between Weight and % Body Fat.
a) Find a 90% confidence interval for the slope of the regression line of %Body Fat on Weight.
b) Interpret your interval in context.
c) Give a 95% prediction interval for the %Body Fat of an individual who weighs 165 pounds.
Question 2 - Body fat. Do the data shown in the table in the next column indicate an association between Waist size and % Body Fat?
a) Test an appropriate hypothesis and state your conclusion.
b) Give a 95% confidence interval for the mean %Body Fat found in people with 40-inch Waists.
