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 a 40-inch Waist.

Waist Weight Body Fat Waist Weight (in.) (lb) (%) (in.) (lb) Body Fat (%) 32 175 6 33 188 10 36 181 21 40 240 20 38 200 15 36 175 22 33 159 6 32 168 9 39 196 22 44 246 38 40 192 31 33 160 10 41 205 32 41 215 27 35 173 21 34 159 12 38 187 25 34 146 10 38 188 30 44 219 28