Cholesterol Does a person’s cholesterol level tend to change with age? Data collected from 1406 adults aged 45 to 62 as part of the Framingham study produced the regression analysis shown. Assuming that the data satisfy the conditions for inference, examine the association between age and cholesterol level. (Data in Framingham)

Dependent variable is Chol s = 46.16 Variable Coefficient SE(Coeff) t-Ratio P-Value Intercept 194.232 13.55 14.3 …0.0001 Age 0.771639 0.2574 3.00 0.0028

a) State the appropriate hypothesis for the slope.

b) Test your hypothesis and state your conclusion in the proper context.