Interpret the intercept of the estimated regression equation in the context of this problem. In a practical situation, is it reasonable to interpret this intercept value? Why or why not?
a) The intercept represents the starting point of the regression line; it is reasonable to interpret in practical situations because it indicates the baseline value.
b) The intercept has no practical significance; it is an artifact of the regression analysis.
c) The intercept signifies the slope of the regression line; practical interpretation depends on the specific variables involved.
d) The intercept is irrelevant in regression analysis; only coefficients of independent variables matter.