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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 25% allowance for workers. (Round all intermediate calculations to two decimal places before proceeding with further calculations.) Element Grasp and place bag Fill bag Seal bag Performance Rating 105% 85% 110% 1 8 35 14 Observation (seconds) 2 8 41 16 3 9 39 12 4 10 35 20 5 7 114* 19 D

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 25% allowance for workers. (Round all intermediate calculations to two decimal places before proceeding with further calculations.) Element Grasp and place bag Fill bag Seal bag Performance Rating 105% 85% 110% 1 8 35 14 Observation (seconds) 2 8 41 16 3 9 39 12 4 10 35 20 5 7 114* 19 D

Practical Management Science
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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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 25% allowance for workers. (Round all intermediate calculations to two decimal places before proceeding with further calculations.) Element Grasp and place bag Fill bag Seal bag Place bag on conveyor * Performance Rating 105% 85% 110% 90% 1 8 35 14 9 Observation (seconds) 2 8 41 16 5 Bag breaks open; included as delay in the allowance factor ^ Conveyor jams; included as delay in the allowance factor a) The standard time for this process = 87.5 seconds (round your response to two decimal places). b) The number of observations that are required for a 99% confidence level within 5% accuracy = 3 9 39 12 10 4 10 35 20 30^ 5 7 114* 19 35^ observations (round your response up to the next whole number).
Transcribed Image Text: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 25% allowance for workers. (Round all intermediate calculations to two decimal places before proceeding with further calculations.) Element Grasp and place bag Fill bag Seal bag Place bag on conveyor * Performance Rating 105% 85% 110% 90% 1 8 35 14 9 Observation (seconds) 2 8 41 16 5 Bag breaks open; included as delay in the allowance factor ^ Conveyor jams; included as delay in the allowance factor a) The standard time for this process = 87.5 seconds (round your response to two decimal places). b) The number of observations that are required for a 99% confidence level within 5% accuracy = 3 9 39 12 10 4 10 35 20 30^ 5 7 114* 19 35^ observations (round your response up to the next whole number).
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