Fundamentals of Cost Accounting
6th Edition
ISBN: 9781260708783
Author: LANEN, William
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 5, Problem 47E
To determine
Suggest a solution to the manager in the given case.
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Armer Company is accumulating data to use in preparing its annual profit plan for the coming year.
The cost behavior pattern of the maintenance costs must be determined. The accounting staff has
suggested the use of linear regression to derive an equation for maintenance hours and costs.
Data regarding the maintenance hours and costs for the last year and the results of the regression
analysis follow:
Maintenance
Machine
Month
Cost
Hours
$ 4,200
Jan.
480
Feb.
3,000
320
Mar.
3,600
400
Apr.
2,820
300
May
4,350
500
June
2,960
310
July
3,030
320
Aug.
4,470
520
Sept.
4,260
490
Oct.
4,050
470
Nov.
3,300
350
Dec.
3,160
340
Sum
$43, 200
4,800
$ 3,600
$
$
$ 684.65
Average
400
Average cost per hour
a (intercept)
b (coefficient)
9.00
7.2884
Standard error of the estimate
34.469
R-squared
0.99724
t-value for b
60.105
At 400 hours of activity, Armer management can be approximately two-thirds confident that the
maintenance costs will be in the range of
The production department is proposing the purchase of an automatic insertion machine. It has identified three machines and has asked the accountant to analyze them to determine
which one has the best average rate of return.
Machine A Machine B Machine C
$83,087.40 $73,001.40
322,364.00 276,958.00 486,676.00
Estimated average income $45,130.96
Average investment
Oa. Machine B
Ob. Machine C
Oc. Machine A
Od. Machines B and C have the same preferred average rate of return.
Interpreting regression results. Spirit Freightways is a leader in transporting agricultural products in the western provinces of Canada. Reese Brown, a financial analyst at Spirit Freightways, is studying the behavior of transportation costs for budgeting purposes. Transportation costs at Spirit are of two types: (a) operating costs (such as labor and fuel) and (b) maintenance costs (primarily overhaul of vehicles). Brown gathers monthly data on each type of cost, as well as the total freight miles traveled by Spirit vehicles in each month. The data collected are shown below (all in thousands):
Conduct a regression using the monthly data of operating costs on freight miles. You should obtain the following result:
Regression: Operating costs = a + (b X Number of freight miles)
Plot the data and regression line for the above estimation. Evaluate the regression using the criteria of economic plausibility, goodness of fit, and slope of the regression line.
Brown expects Spirit to…
Chapter 5 Solutions
Fundamentals of Cost Accounting
Ch. 5 - What are the common methods of cost estimation?Ch. 5 - Prob. 2RQCh. 5 - Under what conditions is the engineering estimates...Ch. 5 - If one wishes simply to prepare a cost estimate...Ch. 5 - When using cost estimation methods based on past...Ch. 5 - Prob. 6RQCh. 5 - What is the difference between R2 and adjusted R2?Ch. 5 - Why are accurate cost estimates important?Ch. 5 - What are three practical implementation problems...Ch. 5 - Why is it important to incorporate learning into...
Ch. 5 - What are some complications that can arise when...Ch. 5 - The following costs are labeled fixed or variable...Ch. 5 - Prob. 13CADQCh. 5 - When preparing cost estimates for account analysis...Ch. 5 - How can one compensate for the effects of price...Ch. 5 - Prob. 16CADQCh. 5 - Prob. 17CADQCh. 5 - A decision maker is interested in obtaining a cost...Ch. 5 - Consider the Business Application item Using...Ch. 5 - A friend comes to you with the following problem....Ch. 5 - After doing an account analysis and giving the...Ch. 5 - In doing cost analysis, you realize that there...Ch. 5 - Prob. 23CADQCh. 5 - Are learning curves likely to affect materials...Ch. 5 - McDonalds, the fast-food restaurant, is known for...Ch. 5 - Prob. 26CADQCh. 5 - A manager asks you for a cost estimate to open a...Ch. 5 - Prob. 28CADQCh. 5 - Methods of Estimating Costs: Engineering Estimates...Ch. 5 - Prob. 30ECh. 5 - Methods of Estimating Costs: Engineering Estimates...Ch. 5 - Prob. 32ECh. 5 - Methods of Estimating Costs: Account Analysis The...Ch. 5 - Methods of Estimating Costs: Account Analysis...Ch. 5 - Methods of Estimating Costs: High-Low, Ethical...Ch. 5 - Methods of Estimating Costs: High-Low Adriana...Ch. 5 - Methods of Estimating Costs: High-Low
Adriana...Ch. 5 - Prob. 38ECh. 5 - Adriana Corporation manufactures football...Ch. 5 - Methods of Estimating Costs: Simple...Ch. 5 - Prob. 41ECh. 5 - Methods of Estimating Costs: High-Low Davis Stores...Ch. 5 - Methods of Estimating Costs: Scattergraph Prepare...Ch. 5 - Prob. 44ECh. 5 - Interpretation of Regression Results: Multiple...Ch. 5 - Interpretation of Regression Results Brodie...Ch. 5 - Prob. 47ECh. 5 - Interpretation of Regression Results: Simple...Ch. 5 - Learning Curves Assume that General Dynamics,...Ch. 5 - Learning Curves Assume that Whee, Cheatham, and...Ch. 5 - Prob. 51ECh. 5 - Learning Curves (Appendix B) Refer to the example...Ch. 5 - Prob. 53PCh. 5 - Prob. 54PCh. 5 - Regressions from Published Data Obtain 13 years of...Ch. 5 - Prob. 56PCh. 5 - High-Low Method, Scattcrgraph Cubicle Solutions...Ch. 5 - High-Low Method, Scattcrgraph Academy Products...Ch. 5 - High-Low, Scattergraph, Issues with Data
Wyoming...Ch. 5 - Interpretation of Regression Results: Simple...Ch. 5 - Interpretation of Regression Results: Simple...Ch. 5 - Interpretation of Regression Results: Multiple...Ch. 5 - Interpretation of Regression Results: Simple...Ch. 5 - Interpretation of Regression Results Brews 4 U is...Ch. 5 - Cost Estimation: Simple Regression The following...Ch. 5 - Prob. 68PCh. 5 - Methods of Cost Analysis: Account Analysis, Simple...Ch. 5 - Learning Curves (Appendix B) Refer to the example...Ch. 5 - Learning Curves (Appendix B) Krylon Company...
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- Jensen Tire Auto is deciding whether to purchase a maintenance contract for its new computer wheel alignment and balancing machine. Managers feel that maintenance expense should be related to usage, and they collected the following information on weekly usage (hours) and annual maintenance expense (in hundreds of dollars). a. Develop a scatter chart with weekly usage hours as the independent variable. What does the scatter chart indicate about the relationship between weekly usage and annual maintenance expense? b. Use the data to develop an estimated regression equation that could be used to predict the annual maintenance expense for a given number of hours of weekly usage. What is the estimated regression model? c. Test whether each of the regression parameters 0 and 1 is equal to zero at a 0.05 level of significance. What are the correct interpretations of the estimated regression parameters? Are these interpretations reasonable? d. How much of the variation in the sample values of annual maintenance expense does the model you estimated in part (b) explain? e. If the maintenance contract costs 3,000 per year, would you recommend purchasing it? Why or why not?arrow_forwardCost Classification, Income Statement Gateway Construction Company, run by Jack Gateway, employs 25 to 30 people as subcontractors for laying gas, water, and sewage pipelines. Most of Gateways work comes from contracts with city and state agencies in Nebraska. The companys sales volume averages 3 million, and profits vary between 0 and 10% of sales. Sales and profits have been somewhat below average for the past 3 years due to a recession and intense competition. Because of this competition, Jack constantly reviews the prices that other companies bid for jobs. When a bid is lost, he analyzes the reasons for the differences between his bid and that of his competitors and uses this information to increase the competitiveness of future bids. Jack believes that Gateways current accounting system is deficient. Currently, all expenses are simply deducted from revenues to arrive at operating income. No effort is made to distinguish among the costs of laying pipe, obtaining contracts, and administering the company. Yet all bids are based on the costs of laying pipe. With these thoughts in mind, Jack looked more carefully at the income statement for the previous year (see below). First, he noted that jobs were priced on the basis of equipment hours, with an average price of 165 per equipment hour. However, when it came to classifying and assigning costs, he needed some help. One thing that really puzzled him was how to classify his own 114,000 salary. About half of his time was spent in bidding and securing contracts, and the other half was spent in general administrative matters. Required: 1. Classify the costs in the income statement as (1) costs of laying pipe (production costs), (2) costs of securing contracts (selling costs), or (3) costs of general administration. For production costs, identify direct materials, direct labor, and overhead costs. The company never has significant work in process (most jobs are started and completed within a day). 2. Assume that a significant driver is equipment hours. Identify the expenses that would likely be traced to jobs using this driver. Explain why you feel these costs are traceable using equipment hours. What is the cost per equipment hour for these traceable costs?arrow_forwardThe following information is related to the current operation of Kenanga Branch. Operating income 5,000,000 Sales revenue 62, 500,000 Average operating asset 25,000,000 Average balance in current liabilities 13,400,000 The management of the company has decided that the minimum return required is 11 percent. Residual income is another approach that can be used to measure performance of an investment centre. Define residual income and determine the residual income for Kenanga Branch.arrow_forward
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