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Author Question: McDaniel Shipyards wants to develop control charts to assess the quality of its steel plate. They ... (Read 52 times)

penza

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on: Dec 3, 2019

Question 1

Cartons of Plaster of Paris are supposed to weigh exactly 32 oz. Inspectors want to develop process control charts. They take ten samples of six boxes each and weigh them. Based on the following data, compute the lower and upper control limits and determine whether the process is in control.

SampleMeanRange
133.81.1
234.60.3
334.70.4
434.10.7
534.20.3
634.30.4
733.90.5
834.10.8
934.20.4
1034.40.3


Question 2

McDaniel Shipyards wants to develop control charts to assess the quality of its steel plate. They take ten sheets of 1" steel plate and compute the number of cosmetic flaws on each roll. Each sheet is 20' by 100'. Based on the following data, develop limits for the control chart, plot the control chart, and determine whether the process is in control.

SheetNumber of flaws
11
21
32
40
51
65
70
82
90
102
Operations Management (Canadian Edition) ¦ Heizer, Render, Griffin ¦ 1st Edition
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Marked as best answer by penza on Dec 3, 2019

chloejackso

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Reply #1 on: Dec 3, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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penza

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Reply 2 on: Dec 3, 2019
Great answer, keep it coming :)

laurnthompson

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Reply 3 on: Yesterday
Wow, this really help

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