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 = 80.71 seconds (round your response to two decimal places). Part 3 b) The number of observations that are required for a 90% confidence level within 5% accuracy = enter your response here observations (round your response up to the next whole number).
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 = 80.71 seconds (round your response to two decimal places). Part 3 b) The number of observations that are required for a 90% confidence level within 5% accuracy = enter your response here observations (round your response up to the next whole number).
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
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 =
80.71
seconds (round your response to two decimal places).Part 3
b) The number of observations that are required for a
90%
confidence level within
5%
accuracy =
enter your response here
observations (round your response up to the next whole number).Expert Solution
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