In the linear consumption function
the (estimated) marginal propensity to consume (MPC) out of income is simply the slope, J3V while the average propensity to consume (APC) is cons/inc = (ijinc + fiv Using observations for 100 families on annual income and consumption (both measured in dollars), the following equation is obtained:
(i) Interpret the intercept in this equation, and comment on its sign and magnitude.
(ii) What is the predicted consumption when family income is $30,000?
(iii) With inc on the x-axis, draw a graph of the estimated MPC and APC.
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