A shirt manufacturer buys cloth by the 100-yard roll from a supplier. For setting up a control chart to manage the irregularities (e.g... loose threads and tears), the following data were collected from a sample provided by the supplier. SAMPLE IRREGULARITIES cbar Sc UCL LCL 1 1 O Yes O NO 2 6 3 3 4 8 5 4 6 6 7 6 8 2 a. Determine the c. So UCL and LCL for a c-chart with z 2. (Leave no cells blank. Round up any negative LCL value to "0". Round your answers to 2 decimal places.) 9 5 10 8 b. Suppose the next five rolls from the supplier had three, one, four, six, and eight Irregularities. Is the supplier process under control?

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Hh.85.

 

A shirt manufacturer buys cloth by the 100-yard roll from a supplier. For setting up a control chart to manage the irregularities (e.g...
loose threads and tears), the following data were collected from a sample provided by the supplier.
SAMPLE
cbar
Sc
UCL
LCL
1
O Yes
O NO
2
6
1
3
3
4
5
4
IRREGULARITIES
a. Determine the c. So UCL and LCL for a c-chart with z=2. (Leave no cells blank. Round up any negative LCL value to "0". Round
your answers to 2 decimal places.).
8
6 7
6 6
8
9
5
2
10
8
b. Suppose the next five rolls from the supplier had three, one, four, six, and eight Irregularities. Is the supplier process under control?
Transcribed Image Text:A shirt manufacturer buys cloth by the 100-yard roll from a supplier. For setting up a control chart to manage the irregularities (e.g... loose threads and tears), the following data were collected from a sample provided by the supplier. SAMPLE cbar Sc UCL LCL 1 O Yes O NO 2 6 1 3 3 4 5 4 IRREGULARITIES a. Determine the c. So UCL and LCL for a c-chart with z=2. (Leave no cells blank. Round up any negative LCL value to "0". Round your answers to 2 decimal places.). 8 6 7 6 6 8 9 5 2 10 8 b. Suppose the next five rolls from the supplier had three, one, four, six, and eight Irregularities. Is the supplier process under control?
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