Practical Management Science
6th Edition
ISBN: 9781337406659
Author: WINSTON, Wayne L.
Publisher: Cengage,
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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
20%
allowance for workers. (Round all intermediate calculations to two decimal places before proceeding with further calculations.)
|
Performance
|
Observation (seconds)
|
||||||||||
Element
|
Rating
|
1
|
|
2
|
|
3
|
|
4
|
|
5
|
|
|
Grasp and place bag
|
105
|
%
|
8
|
|
10
|
|
9
|
|
12
|
|
6
|
|
Fill bag
|
85
|
%
|
36
|
|
40
|
|
39
|
|
36
|
|
114
|
*
|
Seal bag
|
105
|
%
|
14
|
|
17
|
|
13
|
|
19
|
|
17
|
|
Place bag on conveyor
|
85
|
%
|
7
|
|
6
|
|
9
|
|
30
|
^
|
34
|
^
|
* Bag breaks open; included as delay in the allowance factor
^ Conveyor jams; included as delay in the allowance factor
Part 2
a) The standard time for this process =
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