OBSERVATIONS (SECONDS) 1 2 3 4 5 PERFORMANCE RATING (%) ELEMENT Grasp and place bag Fill bag Seal bag Place bag on conveyor 110 8 9 8 11 112 7 36 41 39 35 85 15 17 13 20 18 105 8 6 9 30b 35b 90 Bag breaks open; included as delay in the allowance factor. bConveyor jams; included as delay in the allowance factor.
OBSERVATIONS (SECONDS) 1 2 3 4 5 PERFORMANCE RATING (%) ELEMENT Grasp and place bag Fill bag Seal bag Place bag on conveyor 110 8 9 8 11 112 7 36 41 39 35 85 15 17 13 20 18 105 8 6 9 30b 35b 90 Bag breaks open; included as delay in the allowance factor. bConveyor jams; included as delay in the allowance factor.
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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Question
The Dubuque Cement Company packs 80-pound bags of concrete mix. Time-study data for the filling activity are shown in the following table. Because of the high physical demands of the job, the company's policy is a 23% allowance for workers. a) Compute the standard time for the bag-packing task. b) How many observations are necessary for 99% confidence, within ±5% accuracy? |
![OBSERVATIONS (SECONDS)
1 2 3 4 5
PERFORMANCE
RATING (%)
ELEMENT
Grasp and place bag
Fill bag
Seal bag
Place bag on conveyor
110
8 9 8 11
112
7
36 41 39 35
85
15 17 13 20
18
105
8 6
9 30b
35b
90
Bag breaks open; included as delay in the allowance factor.
bConveyor jams; included as delay in the allowance factor.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F66309737-ffde-4552-a04b-aba194834e47%2Fc0069e68-c99e-40ad-b499-01b9e0840216%2Fmx2trma_processed.png&w=3840&q=75)
Transcribed Image Text:OBSERVATIONS (SECONDS)
1 2 3 4 5
PERFORMANCE
RATING (%)
ELEMENT
Grasp and place bag
Fill bag
Seal bag
Place bag on conveyor
110
8 9 8 11
112
7
36 41 39 35
85
15 17 13 20
18
105
8 6
9 30b
35b
90
Bag breaks open; included as delay in the allowance factor.
bConveyor jams; included as delay in the allowance factor.
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