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Operations Management
Operations Management [EXP-72231]
199 SOLVED PROBLEMS
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Question: 3.7
A coffee shop owner wants to estimate demand for the next two quarters for hot chocolate. Sales data consist of trend and seasonality. a. Quarter relatives are 1.20 for the first quarter, 1.10 for the second quarter, 0.75 for the third quarter, and 0.95 for the fourth quarter. Use this information
Verified Answer:
a. Period Quarter Sales (gal.)
\di...
Question: P.2.1
A company that processes fruits and vegetables is able to produce 400 cases of canned peaches in one-half hour with four workers. what is labor productivity?
Verified Answer:
Labor productivity=
\frac{Quantity produced...
Question: 4S.4
A copier is able to operate for an average of 200 hours between repairs ,and the mean repair time is two hours. Determine the availability of the copier.
Verified Answer:
MTBF = 200 hours and MTR = 2 hours Availability= [...
Question: 5.2
A department works one 8-hour shift, 250 days a year, and has these figures for usage of a machine that is curently being considered:
Verified Answer:
Working one 8-hour shift 250 days a year provides ...
Question: 12.2
A firm that produces wood shutters and bookcases has received two orders for shutters: one for 100 shutters and one for 150 shutters. The 100-unit order is due for delivery at the start of week 4 of the current schedule, and the 150-unit order is due for delivery at the start of week 8. Each
Verified Answer:
a. Develop a master schedule: Week number 1 2 ...
Question: 5.P.1
A firm’s manager must decide whether to make or buy a certain item used in the production of vending machines . Making the item would involve annual lease costs of $ 150,000. Cost and volume estimates are as follows: a Given these numbers, shoud the firm buy or make this item ?
Verified Answer:
a. Determine the annual cost of each alternative: ...
Question: 16.4
A group of six jobs is to be processed through a two-machine flow shop. The first operation involves cleaning and the second involves painting. Determine a sequence that will minimize the total completion time for this group of jobs. Processing times are as follows: To employ Johnson’s rule, create
Verified Answer:
a. Select the job with the shortest processing tim...
Question: P.2.4
A health club has employees who worck on lead generation. Each employee works 40 hours aweek and is paid $ 20 an hour . Each employee identifies an average of 400 possible leads a week from alist of 8,000 names. Approximately 10 percent of the leads become members and pay a onetime fee of $ 100
Verified Answer:
MFP =
\frac{(Possible leads)(No . of wor...
Question: P.4.3
A hospital has three independent fire alarm systems, with reliabilities of .95,.97, and .99. In the event of a fire , what is the probability that a warning would be given ?
Verified Answer:
A warning would not be given if all three alarms f...
Question: 13.2
A local distributor a national tire company expects to sell approximately 9,600 steel-belted radial tires of a certain size and tread design next year. Annual carrying cost is $16 per tire, and ordering cost is $75. The distributor operates 288 days a year. a. What is the EOQ? b. How many times per
Verified Answer:
D = 9 600 tires per year H = $16 per unit per year...
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