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hotel operations management
Operations Management 2009 Edition Kumar, S. Anil - Solutions
Ten observations taken of the time required to assemble a sofa frame in a furniture plant were as shown below (min). Find the (a) mean time, (b) standard deviation, and (c) standard error of the mean.Observation 4.7 4.2 5.1 4.8 5.5 5.4 5.8 4.8 5.0 4.7 50.0(X – X) – 0.3 – 0.8 0.1 –0.2 0.5
Fixed costs are Rs. 40,000 per year, variable costs are Rs. 50 per unit, and the selling price is Rs. 90 each. Find the BEP. [Ans. 1,000 units]
Florida Citrus produced 40,000 boxes of fruit that sold for Rs. 3 per box. The total variable costs for the 40,000 boxes were Rs. 60,000, and the fixed costs were Rs.75,000. (a) What was the break-even quantity? (b) How much profit (or loss) resulted?[Ans. (a) 50,000 boxes and (b) Rs.15, 000 loss]
A travel agency has an excursion package that sells for Rs.
Fixed costs are Rs. 80,000; and at the present volume of 1,000 customers, variable costs are Rs. 25,000 and profits are Rs. 20,000. (a) What is the break-even point volume? (b) Assuming that fixed costs remain constant, how many additional customers will be required for the agency to increase
Last year, Dever Furniture Co. produced 200 maple dressers (pattern 427) that sold for Rs. 210 each.The company included labour costs of Rs. 42 per unit and material costs of Rs.18 per unit, and it allocated Rs. 80 per unit of overhead costs to each dresser. Cost records reveal that overhead costs
Given the pay-off table below showing the profit (present value Rs.in lakhs), a firm might expect in a foreign country for three alternative factory investments (X, Y, and Z) under different levels of inflation. Economists have assigned probabilities of 0.2, 0.3, 0.4, and 0.1 to the possible
Frozen Pizza Co. is considering whether it should allocate funds for research on an instant freeze-dry process for home use. If the research is successful (and the R&D manager feels there is a 75 per cent chance it will be), the firm could market the product at a Rs.4 million profit. However, if
The operations manager of a large airport is concerned with the problem of having adequate personnel to offer individual assistance to handicapped passengers during rush hours. Data were collected on the number of requests for assistance during 20 randomly selected rush hours and revealed the
What is meant by ‘phasing in’ capacity?
Distinguish between design capacity and system capacity.
How the following organizations adjust to the daily fluctuations in demand?(a) Airlines, (b) Restaurants, (c) Dentists.
A manufacturer of TV watches uses three TRS7 electronic chips in each TV watches produced.Demand estimates for the number of TV watches that could be sold next year are shown Demand X 20000 40000 50000 P (X) 0.30 0.50 0.20(a) Assuming the firm decides to produce on an expected value basis, how many
The individual component capacities (in units per day) for an assembly line that consists of five activities are as shown in the accompanying diagram.(a) What is the system capacity?(b) What is the efficiency of the system?
An automatic drive-in teller at American National Bank has the capacity of handling 2,000 entries per regular banking day (according to the firm that sold it to the bank). However, because of limitations imposed by automobile access, the teller is available only 60 per cent of the time. It is
What do you mean by plant location?
What is virtual proximity?
What is virtual factory?
What is agglomeration?
What is degglomeration?
What is plant layout?
Mention any four objectives of plant layout.
Explain different operations strategies in case of location choice for existing organisation.
Explain the factors to be considered while selecting the location for the new organisation.
Explain the reasons for global or foreign location.
Explain the Alfred Weber’s theory of the location of industries.
Explain the objectives of plant layout.
Explain the main principles of plant layout.
Explain the factors considered for an industrial building.
Explain the need for selecting a suitable location.
Explain the factors influencing plant location.
Explain the different types of layouts.
Explain the physical facilities required in an organisation/factory.
What are forecasts?
What are the costs associated with forecasting–or not forecasting?
Summarize the key features of the more commonly used forecasting method.
What is a time series, and what are the components of a time series?
Explain the (a) trend, (b) seasonal, (c) cyclical, and (d) random components of a series.
What steps are involved in using time series data to make a forecast?
What is exponential smoothing?
Distinguish between, (a) simple regression, and (b) simple correlation.
Forecast demand for March was 950 units, but actual demand turned out to be only 820.If the firm is using a simple exponential smoothing technique with a = 0.2, what is the forecast for April?[Ans. 924 units]
Using the results from Problem 1, assume the April demand was actually 980 units. Now what is the forecast for May? [Ans. 935 units]
A forecaster is using an exponential smoothing model with a = 0.4 and wishes to convert to a moving average. What length of moving average is approximately equivalent? [Ans. 4 periods]
A university registrar has adopted a simple exponential smoothing model ( a = 0.4) to forecast enrollments during the three regular terms (excluding summer). The results are shown in Table 5.16(a) Use the data to develop an enrollment forecast for the third quarter of year 2.(b) What would be the
A firm producing photochemical has a weekly demand pattern as shown in Table 5.17. Using a smoothing constant of = 0.5 for both original data and trend, and beginning with week I,(a) compute the simple exponentially smoothed forecast and (b) compute the trend-adjusted exponentially smoothed
Find the regression equation resulting from the values Σ X = 70, ΣY = 90, ΣXY = 660,Σ X 2 = 514, n = 10.[Ans. Yc = 0.25 + 1.25X]
A producer of roofing materials has collected data relating interest rates to sales of asphalt shingles and found that the unexplained variation = 680, and explained variation = 2840.(a) Find the correlation coefficient. (b) Explain its meaning.[Ans. (a) r = 0.90 (b) 81 per cent of the variation in
The Carpet Cleaner Co. is attempting to do a better job of inventory management by predicting the number of vacuums the company will sell per week on the basis of the number of customers who respond to magazine advertisements in an earlier week. On the basis of a sample of n = 102 weeks, the
A recreation operations planner has had data collected on automobile traffic at a selected location Y on an interstate highway in hopes that the information can be used to predict weekday demand for state: operated camposites 200 miles away. Random samples of 32 weekdays during the camping season
Allan’s Underground Systems installs septic systems for new houses constructed outside the city limits. To help forecast his demand, Mr. Allan has collected the data shown in Table on the number of country building permits issued per month, along with the corresponding number of bid requests he
Two experienced managers have resisted the introduction of a computerized exponential smoothing system, claiming that there judgmental forecast are “much better than any impersonal computer could do.” There past record of prediction is as shown in Table 5.19.(a) Compute the MAD. (b) Compute the
How does a good product design increase Organisational efficiencies?
Should the product design concern itself with Organisational efficiencies? Discuss.
Why did, in your opinion, Henry fords message on product design get lost for so many decades?Discuss.
‘DFM is value engineering for manufacturing.’ Do you agree with this statement? Explain.
Discuss the merits and demerits of using plastic parts in a product.
Would DFM suppress creativity in a firm? Discuss.
Several functions in the companies are getting to be strategic, product design being one of them. If that is the case, how should the organisation cope with this situation of multiple strategic functions?
“A Good Product Design Contributes To “TQM” in the Organisation.” Explain how this may happen.
Wouldn’t reliability concerns clash with DFM concerns? Discuss.
What is DFX? What all is included in DFX?
Time is money. How can a product design project be hastened?
What are the problems, if any, with concurrent Engineering?
How will you incorporate environmental concerns into product design? Discuss.
Can there be a design for disassembling? Where could this concept be useful? Give your tips for such a design.
What do you mean by materials management?
What is material planning and budgeting?
What do you mean by purchasing?
What do you mean by ‘Inventory Management’?
What do you mean by ‘Inventory Control’?
What is codification?
What do you mean by ‘Standardisation’?
What do you mean by ‘Simplification’?
What is ‘Value Analysis’?
What do you mean by ‘Ergonomics’?
What is EOQ?
Explain the objectives of materials management.
What are the functions of stores?
Explain the reasons for keeping inventories.
What are the objectives of inventory control?
What are the benefits of inventory control?
What are the objectives of codification?
What are the advantages of simplification?
Explain the basic steps in value analysis.
Explain the objective of ‘Ergonomics’.
Discuss the scope of materials management.
Discuss the parameters of purchasing.
Discuss the ten ‘R’s’ of purchasing.
Discuss the purchasing procedure.
Discuss the selection of suppliers.
Discuss the benefits of standardisation.
What is aggregate planning?
What is scheduling, and does it differ from aggregate planning?
What focused strategies are employed by production planners to meet nonuniform demands?
What are the major inputs to master production schedule?
What determines the planning horizon length (time span) of a master schedule?
How do firms accommodate changes in their master schedule?
What is meant by the terms (a) demand time fence and (b) planning time fence?
How does master scheduling differ under manufacturing strategies of (a) make-to-stock,(b) assemble-to-order, and (c) make-to-order?
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