Finding process proportion of defectives

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Reference no: EM131876064

Question: Given the following process control data for a quality attribute (three samples of size 400 each):

Sample Defectives

#1 36

#2 32

#3 52

If the process proportion of defectives is unknown, using .10 alpha risk control limits, do any of the sample proportions indicate an out-of-control process proportion of defectives? Calculate each and provide an answer. Show your work.

Reference no: EM131876064

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