Answered: Most firms underestimate the cost and…

Most firms underestimate the cost and time requirements of the SDLC by as much as 50 percent. Why do you think this occurs? In what stages do you think the underestimates are most dramatic?

Essentials of Business Analytics (MindTap Course List)

2nd Edition

ISBN:9781305627734

Author:Jeffrey D. Camm, James J. Cochran, Michael J. Fry, Jeffrey W. Ohlmann, David R. Anderson

Publisher:Jeffrey D. Camm, James J. Cochran, Michael J. Fry, Jeffrey W. Ohlmann, David R. Anderson

Chapter6: Statistical Inference

Section: Chapter Questions

Problem 30P: Suppose a new production method will be implemented if a hypothesis test supports the conclusion...

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Most companies underestimate the SDLC's costs and needs by up to 50%. Do you have any theories as to why this happens? Which phases do you believe have the most drastic underestimations?
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Suppose a new production method will be implemented if a hypothesis test supports the conclusion that the new method reduces the mean operating cost per hour. State the appropriate null and alternative hypotheses if the mean cost for the current production method is $220 per hour. What is the Type I error in this situation? What are the consequences of making this error? What is the Type II error in this situation? What are the consequences of making this error?
Boxer Production, Inc., is in the process of considering a flexible manufacturing system that will help the company react more swiftly to customer needs. The controller, Mick Morrell, estimated that the system will have a 10-year life and a required return of 10% with a net present value of negative $500,000. Nevertheless, he acknowledges that he did not quantify the potential sales increases that might result from this improvement on the issue of on-time delivery, because it was too difficult to quantify. If there is a general agreement that qualitative factors may offer an additional net cash flow of $150,000 per year, how should Boxer proceed with this Investment?
Berwin Inc. is a small industrial equipment manufacturer with approximately $3.5 million in annual sales.Berwin can always compete with other small appliance manufacturers. However, the market expandsonly when there is product innovation. The following is information on Berwin Inc's performance report:Required : Compute and analyze if the variance is favorable or unfavorable! Identify the strengths and weaknesses of the performance report and give your explanation! How should the report be revised to eliminate these weaknesses? Please explain!
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A manager is trying to decide whether to buy one machine or two. If only one machine is purchased and demand proves to be excessive, the second machine can be purchased later. Some sales would be lost, however, because the lead time for delivery of this type of machine is 6 months. In addition, the cost per machine will be lower if both machines are purchased at the same time. The probability of low demand is estimated to be 0.30 and that of high demand to be 0.70. The after-tax NPV of the benefits from purchasing two machines together is $90,000 if demand is low and $170,000 if demand is high. If one machine is purchased and demand is low, the NPV is $120,000. If demand is high, the manager has three options: (1) doing nothing, which has an NPV of $120,000; (2) subcontracting, with an NPV of $140,000; and (3) buying the second machine, with an NPV of $130,000. a. Draw a decision tree for this problem. b. What is the best decision and what is its expected payoff?