Question: Body fat, again. Use the data from Exercise 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.
Exercise: Body fat. Do the data shown in the table below 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.
