In the linear consumption function cons = ^B0 + ^B1 * inc
the (estimated) marginal propensity to consume (MPC) out of income is simply the slope,
^B1,
, while the average propensity to consume (APC) is ^cons/inc = ^B0 /inc + ^B1
. Using obser-
vations for 100 families on annual income and consumption (both measured in dollars), the
following equation is obtained:
^cons = -124.84 + .853 * inc
n=100, R^2 = .692
(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.

Gino's restaurant is a popular restaurant in boston, massachusetts. the owner of the restaurant has been trying to better understand costs at the restaurant and has hired a student intern to conduct an activity-based costing study. the intern, in consultation with the owner, identified the following major activities: activity cost pool activity measure serving a party of diners number of parties served serving a diner number of diners served serving drinks number of drinks ordered some costs, such as the cost of cleaning the linens that cover the restaurant's tables, vary with the number of parties served. other costs, such as washing plates and glasses, depends on the number of diners served or the number of drinks served. data concerning these activities are shown below. serving a party serving a dinner serving drinks total total cost $47,600 $153,000 $59,800 $260,400 total activity 7,000 parties 30,000 diners 46,000 drinks prior to the activity-based costing study, the owner knew very little about the costs of the restaurant. she knew that the total cost for the month was $260,400 and that 30,000 diners had been served. therefore, the average cost per diner was $8.68.required: 1. compute the activity rates for each of the three activities 2. according to the activity-based costing system, what is the total cost of serving each of the following parties of diners? a. a party of four diners who ordered three drinks in total b. a party of two diners who do not order any drinks c. a lone diner who orders two drinks 3. convert the total costs you computed in part (1) above to costs per diner. in other words, what is the average cost per diner for serving each of the following parties: a. a party of four diners who order three drinks in total b. a party of two diner who do not order any drinks c. a lone diner who orders two drinks 4. why do the costs per diner for the three different parties differ from each other and from the overall average coast of $9.80 per diner?

Gerda, a real estate agent, is selling a moderately priced house in a subdivision. she knows from her uncle that the factory being built half a mile from the subdivision will be manufacturing dog food, using a process that creates a very strong odor that permeates the surrounding neighborhood. a buyer, who is unaware of the type of factory under construction, makes an offer on one of the houses gerda is selling, and within a short time, the deal goes through. what does this scenario best illustrate?

Exercise 18-15 sheffield appliance center is an experienced home appliance dealer. sheffield appliance center also offers a number of services for the home appliances that it sells. assume that sheffield appliance center sells ovens on a standalone basis. sheffield appliance center also sells installation services and maintenance services for ovens. however, sheffield appliance center does not offer installation or maintenance services to customers who buy ovens from other vendors. pricing for ovens is as follows. oven only $790 oven with installation service 850 oven with maintenance services 970 oven with installation and maintenance services 990 in each instance in which maintenance services are provided, the maintenance service is separately priced within the arrangement at $180. additionally, the incremental amount charged by sheffield appliance center for installation approximates the amount charged by independent third parties. ovens are sold subject to a general right of return. if a customer purchases an oven with installation and/or maintenance services, in the event sheffield appliance center does not complete the service satisfactorily, the customer is only entitled to a refund of the portion of the fee that exceeds $790. assume that a customer purchases an oven with both installation and maintenance services for $990. (b) indicate the amount of revenue that should be allocated to the oven, the installation, and to the maintenance contract.