! Stonebuilt Concrete produces a specialty cement used in construction of roads. Stonebuilt is a price-setting firm and estimates the demand for its cement by thestate department of transportation using a demand function in the nonlinear form:Q = a pb M pdrwhere Q= yards of cement demanded monthly, P= the price of Stonebuilt's cement per yard, M= state tax revenues per capita, and PR = the price of asphalt peryard. The manager at Stonebuilt transforms the nonlinear relation into a linear relation for estimation. The estimation results are presented below:F-RATIO84.872STANDARDP-VALUE ON FDEPENDENT VARIABLE: LNQ R-SQUAREOBSERVATIONS: 640.80930.0001PARAMETERVARIABLEESTIMATEERRORT-RATIOP-VALUEINTERCEPTLNP2.04-2.163.380.04610.03570.00140.04398.204.01-3.540.642870.78541.64LNM0.19LNPR0.382.07If the price of asphalt (PR) decreases 15%, the estimated quantity of cement demanded will:Multiple Choiceincrease 5.2%.increase 11.8%.increase 1.18%.decrease 11.8%.decrease 5.2%.

LN(Q) = Intercept + β1 LN(P) + β2 LN(M) + β3 LN(PR) + µ

Answered: Stonebuilt Concrete produces a…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter11: Simulation Models

Section: Chapter Questions

Problem 54P

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The Tinkan Company produces one-pound cans for the Canadian salmon industry. Each year the salmon spawn during a 24-hour period and must be canned immediately. Tinkan has the following agreement with the salmon industry. The company can deliver as many cans as it chooses. Then the salmon are caught. For each can by which Tinkan falls short of the salmon industrys needs, the company pays the industry a 2 penalty. Cans cost Tinkan 1 to produce and are sold by Tinkan for 2 per can. If any cans are left over, they are returned to Tinkan and the company reimburses the industry 2 for each extra can. These extra cans are put in storage for next year. Each year a can is held in storage, a carrying cost equal to 20% of the cans production cost is incurred. It is well known that the number of salmon harvested during a year is strongly related to the number of salmon harvested the previous year. In fact, using past data, Tinkan estimates that the harvest size in year t, Ht (measured in the number of cans required), is related to the harvest size in the previous year, Ht1, by the equation Ht = Ht1et where et is normally distributed with mean 1.02 and standard deviation 0.10. Tinkan plans to use the following production strategy. For some value of x, it produces enough cans at the beginning of year t to bring its inventory up to x+Ht, where Ht is the predicted harvest size in year t. Then it delivers these cans to the salmon industry. For example, if it uses x = 100,000, the predicted harvest size is 500,000 cans, and 80,000 cans are already in inventory, then Tinkan produces and delivers 520,000 cans. Given that the harvest size for the previous year was 550,000 cans, use simulation to help Tinkan develop a production strategy that maximizes its expected profit over the next 20 years. Assume that the company begins year 1 with an initial inventory of 300,000 cans.
Scenario 3 Ben Gibson, the purchasing manager at Coastal Products, was reviewing purchasing expenditures for packaging materials with Jeff Joyner. Ben was particularly disturbed about the amount spent on corrugated boxes purchased from Southeastern Corrugated. Ben said, I dont like the salesman from that company. He comes around here acting like he owns the place. He loves to tell us about his fancy car, house, and vacations. It seems to me he must be making too much money off of us! Jeff responded that he heard Southeastern Corrugated was going to ask for a price increase to cover the rising costs of raw material paper stock. Jeff further stated that Southeastern would probably ask for more than what was justified simply from rising paper stock costs. After the meeting, Ben decided he had heard enough. After all, he prided himself on being a results-oriented manager. There was no way he was going to allow that salesman to keep taking advantage of Coastal Products. Ben called Jeff and told him it was time to rebid the corrugated contract before Southeastern came in with a price increase request. Who did Jeff know that might be interested in the business? Jeff replied he had several companies in mind to include in the bidding process. These companies would surely come in at a lower price, partly because they used lower-grade boxes that would probably work well enough in Coastal Products process. Jeff also explained that these suppliers were not serious contenders for the business. Their purpose was to create competition with the bids. Ben told Jeff to make sure that Southeastern was well aware that these new suppliers were bidding on the contract. He also said to make sure the suppliers knew that price was going to be the determining factor in this quote, because he considered corrugated boxes to be a standard industry item. As the Marketing Manager for Southeastern Corrugated, what would you do upon receiving the request for quotation from Coastal Products?
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Thinking tools service assembles customized personal computers from generic parts. Formed and operated by part-time Svci students paulette cruz and maureen luis, the company has had steady growth since it started. The company assembles computers mostly at night, using part time students. Paulette and Maureen purchase generic computer parts in volume at a discount from a variety of sources whenever they see a good deal. Thus, they need a good forecast of demand for their computers so that they will know how many parts to purchase and stock. They have compiled demand data for the last 12 months as reported below A. Use exponential smoothing with smoothing parameter a=0.2 to compute the demand forecast for january (period 13) B. Use exponential smoothing with smoothing parameter a=0.5 to compute the demand forecast for january (period 13). C. Paulette believes that there is an upward trend in the demand, the initial forecast is 37 and the trend over this period is 0 units. Use…
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Eastman Publishing Company is considering publishing an electronic textbook about spreadsheet applications for business. The fixed cost of manuscript preparation, textbook design, and web site construction is estimated to be $168,000. Variable processing costs are estimated to be $4 per book. The publisher plans to sell single-user access to the book for $45. Through a series of web-based experiments, Eastman has created a predictive model that estimates demand as a function of price. The predictive model is demand 4,000-6p, where p is the price of the e-book. (a) Construct an appropriate spreadsheet model for calculating the profit/loss at a given single-user access price taking into account the above demand function. What is the profit estimated by your model for the given costs and single user access price (in dollars). (b) Use Goal Seek to calculate the price (in dollars) that results in breakeven (Round your answer to the nearest cent.) (c) Use a data table that varies price from…
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