A textile manufacturer wants to set up a control chart forirregularities? (e.g., oil? stains, shop? soil, loose? threads,and? tears) per 100 square yards of carpet. The following data werecollected from a sample of twenty? 100-square-yard pieces of?carpet:
????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
Sample | Irregularities | Sample | Irregularities | Sample | Irregularities | Sample | Irregularities |
1 | 1111 | 6 | 55 | 11 | 66 | 16 | 55 |
2 | 77 | 7 | 1616 | 12 | 1010 | 17 | 1616 |
3 | 1212 | 8 | 1212 | 13 | 99 | 18 | 99 |
4 | 1717 | 9 | 1414 | 14 | 66 | 19 | 55 |
5 | 1515 | 10 | 55 | 15 | 99 | 20 | 1616 |
a. Using these? data, set up a? c-chart with
zequals=33.
The
UCL Subscript cUCLc
equals
nothing
and the
LCL Subscript cLCLc
equals
nothing.
?(Enter your responses rounded to two decimal? places.)
