The p-value (0.000) for the age variable is less than, say 0.05. A test for significance of that coefficient would be rejected. In other words, the coefficient is much different from zero.
a. Determine the regression equation.
b. Conduct a test to determine whether the slope of the regression line is positive.
c. Determine the coefficient of determination. Do you think Mr. Profit should be satisfied with using the size of the offering as the independent variable?