Problem 3

Abdominal fat is dangerous for women (and men). It has been linked to heart disease. The data below lists waist measurements for women and their overall cholesterol level. At the 2% significance level, test for a linear relationship between waist circumference in women and their cholesterol level.
Waist       67.2   82.5   66.7   93   82.6   75.4   73.6   81.4   99.4   67.7   100.7   99.3   85.7   85.7
Cholest.   264   181     267 384    98      62     126      89     531    130     175     280    149    112