Mathematics, 27.02.2020 18:12 Ariellyvz9103
A textile manufacturer wants to set up a control chart for irregularities (eg. oil stains, shop soil, loose threads, and tears) per 100 square yards of carpet. The following data were collected from a sample of twenty 100-square-yeard pieces of carpet:
Sample Irregularities Sample Irregularity Sample Irregularity
1 18 6 11 11 10
2 14 7 4 12 16
3 6 8 10 13 5
4 14 9 12 14 15
5 8 10 9 15 17
Samples/Irre Cont'd
16 - 4
17 - 15
18 - 9
19 - 15
20 - 17
Using these? data, set up a? c-chart with z =33.
UCLc =
LCLc =
Answers: 2
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A textile manufacturer wants to set up a control chart for irregularities (eg. oil stains, shop soil...
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