Concept explainers
(a)
Interpretation:The measure of productivity in relation to the units of output per dollar of input during the four year period.
Concept Introduction:The key focus of operations management is to enhance the productivity of processes within firms. Productivity simply means the ratio between the inputs and the outputs of a process. Organizations strive to obtain a higher output with lesser inputs. Such a situation would ideally be called a high productivity situation. Sometimes, organizations spend enormous amounts on a specific kind of an input such as machinery. This may sometimes be considered in vain. However, although the initial cost is high, it would ultimately bring down other expenses such as labor costs in the long run.
(b)
Interpretation:Consideration on purchasing new equipment that would reduce the annual labor cost.
Concept Introduction:Productivity is the ultimate goal of operations management. It simply refers to the ratio between inputs and outputs. Businesses manage their processes in such a way that they can obtain a higher output by spending a lesser input. When inputs are lesser than outputs, it is a situation of higher productivity. There are instances where organizations incur a lot of inputs but the productivity of the same is obtained over a long period of time. The annual labor cost coming down over a number of years due to the implementation of a new machine is an example for the above.
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- A process requires a 20 second setup for each batch. When producing, the process can produce one unit every 12 seconds. Demand for the product is 7 units per minute. With a batch size of 20 units, what is the process utilization? Note: Do not round your intermediate calculations. Round your answer to 2 decimal placesarrow_forwardA company manufactures a product using machine cells. Each cell has a design capacity of 250 units per day and an effective capacity of 230 units per day. At present, actual output averages 200 units per cell, but the manager estimates that productivity improvements soon will increase output to 224 units per day. Annual demand is currently 60,000 units. It is forecasted that within two years, annual demand will triple. How many cells will the company require to satisfy predicted demand under these conditions? Assume 242 workdays per year. (Round up your answer to the next whole number.) Answer is complete but not entirely correct. 3 Cellsarrow_forwardMark's Ceramics spent $4000 on a new kiln last year in the belief that it would cut energy usage 25% over the old kiln. This kiln is an oven that turns "greenware" into finished pottery. Mark is concerned that the new kiln requires extra labor hours for its operation. Mark wants to check the energy savings of the new oven, and also to look over other measures of their productivity to see if the change really was beneficial. Mark has the following data to work with: Last Year This Year Production (finished units) 4000 4000 Greenware (pounds) 5000 5000 Labor (hrs) 350 375 Capital ($) 15000 19000 Energy (kWh) 3000 2600 Were the modifications beneficial?arrow_forward
- Kilmer Company's customer demand for its only product exceeds its manufacturing capacity. The company provided the following information for the machine whose limited capacity is prohibiting the company from producing and selling additional units: Actual run time this week Machine time available per week Actual run rate this week Ideal run rate Defect-free output this week Total output this week (including defects) 1-a. Utilization rate 1-b. Efficiency rate. 1-c. Quality rate 1-d. Overall equipment effectiveness 2-a. Utilization loss in units 2-b. Efficiency loss in units 2-c. Quality loss in units 23,310 minutes 25,900 minutes 0.90 8.00 units per minute 10 units per minute Required: 1. and 2. With respect to the company's overall equipment effectiveness, calculate the following: Note: Do not round intermediate calculations. Round final answers to 2 decimal places and "Units" answers to the nearest whole number. 149,184 units 186,480 unitsarrow_forwardThis year, Druehl, Inc., will produce 57,600 hot water heaters at its plant in Delaware, in order to meet expected global demand. To accomplish this, each laborer at the plant will work 200 hours per month. If the labor productivity at the plant is 0.25 hot water heaters per labor hour, how many laborers are employed at the plant? ttempt Number of laborers employed by the plant = laborers (round your answer to the nearest whole number).arrow_forwardKilmer Company's customer demand for its only product exceeds its manufacturing capacity. The company provided the following information for the machine whose limited capacity is prohibiting the company from producing and selling additional units: Actual run tine this week Machine time available per week Actual run rate this week Ideal run rate Defect-free output this week Total output this week (including defects) 1-a. Utilization rate 1-b. Efficiency rate. 1-c. Quality rate 1-d. Overall equipment effectiveness 2-a. Utilization loss in units 12,800 minutes 16,000 minutes. 2-b. Efficiency loss in units 2-c. Quality loss in units 6.30 units per minute. 9 units per minute. Required: 1. and 2. With respect to the company's overall equipment effectiveness, calculate the following: Note: Do not round intermediate calculations. Round final answers to 2 decimal places and "Units" answers to the nearest whole number. 72,576 units 80,640 unitsarrow_forward
- Bob's Cranks uses a machine that can produce 200 cranks per hour. The firm operates 12 hours per day, five days per week. Due to regularly scheduled preventive maintenance, the firm expects the machine to be running during approximately 95% of the available time. Based on experience with other products, the firm expects to achieve an efficiency level for the cranks of 85%. What is the expected weekly output of cranks for this company? 8,550.00 9,690.00 7,267.50 1,800.00 150.00arrow_forwardA fast-food restaurant serves hamburgers, cheeseburgers, and chicken sandwiches. The restaurant counts a cheeseburger as equivalent to 1.25 hamburgers and chicken sandwiches as 0.8 hamburger. Current employment is i ve full-time employees who each work a 40-hour week. If the restaurant sold 700 hamburgers, 900 cheeseburgers, and 500 chicken sandwiches in one week, what is its productivity? What would its productivity have been if it had sold the same number of sandwiches (2,100), but the mix was 700 of each type?arrow_forwardTwo trouble-shooters handle service calls for 10 machines. The average time between service requirements is 18 days, and service time averages 2 days. Assume exponential distributions. While running, each machine can produce 1,500 pieces per day. Hint: Finite Source Determine: (i) the percentage of time trouble-shooters are idle (ii) each machine's net productivity (iii) If trouble-shooters represent a cost of $150 per day, and machine downtime cost is $600 per day, would another trouble-shooter be justified? Explain.arrow_forward
- A manager faces peak (weekly) demand for one of her op-erations, but is not sure how long the peak will last. She caneither use overtime from the current workforce, or hire/lay off and just pay regular-time wages. Regular-time pay is$500 per week, overtime is $750 per week, the hiring cost is$2,000, and the layoff cost is $3,000. Assuming that peopleare available seeking such a short-term arrangement, howmany weeks must the surge in demand last to justify a tem-porary hire? Hint: Use break-even analysis (see SupplementA, “Decision Making”). Let w be the number of weeks ofthe high demand (rather than using Q for the break-evenquantity). What is the fixed cost for the regular-time option?Overtime option?arrow_forwardA manager faces peak (weekly) demand for one of her op-erations, but is not sure how long the peak will last. She caneither use overtime from the current workforce, or hire/lay off and just pay regular-time wages. Regular-time pay is$550 per week, overtime is $825 per week, the hiring cost is$2,000, and the layoff cost is $3,000. Assuming that peopleare available seeking such a short-term arrangement, howmany weeks must the surge in demand last to justify atemporary hire? Hint: Use break-even analysis (see Supple-ment A, “Decision Making Models”). Let w be the numberof weeks of the high demand (rather than using Q for thebreak-even quantity). What is the fixed cost for the regular-time option? Overtime option?arrow_forwardA dressmaker manufactures fashionable clothing. In a specific week, employees worked 360 hours to produce a batch of 132 garments, 52 of which were “second” (defective), which will be sold for $ 90 each in the store for factory sales. The remaining 80 garments will be sold to retail distributors at a price of $ 200 each. What is the labor productivity ratio?arrow_forward
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