A.
Use the following SAS output for the MLR model to obtain the least-squares estimates of the population parameters Bo, ẞ₁ and ẞ2, and obtain the fitted least-squares regression line.
B.
Use the ANOVA table and test for usefulness of the MLR model. Use α = 0.05.
Use the t-test to test whether each explanatory variable contributes significantly to ex- plaining (or, predicting) the systolic blood pressure (y) under the MLR model. Use α = 0.05.