Determine if corrective action is required

Reference no: EM1317643

Solution for a problem based on the statistical quality control.

The quality-control inspector checks 200 pieces in a certain operation. The piece is either good or defective. The record for nine hours is:

Time	No. Checked	No. of Defects
a.m.	200	0
a.m.	200	3
10a.m.	200	4
11a.m.	200	0
12. p.m.	200	5

p.m.	200	2
p.m.	200	0
3p.m.	200	1
4 p.m.	200	3

Build the p-chart and determine if corrective action is required.

Reference no: EM1317643

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