... known as dis-saving spending. MPC = Marginal propensity to consume. This is the change in consumption divided by the change in income, or in other words, it determines the slope of the consumption ... the intercept is not significant.- If the variable X1 (X1 = 1) is omitted, or in other words the intercept 10β=, we obtain the following result when running a regression model having ... monthly family financial support remain unchanged.3. TESTING THE SIGNIFICANCE OF THE REGRESSION COEFFICIENTS AND THE RELEVANCE OF THE REGRESSION FUNCTIONa) The significance of the regression...