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No. of defectives Spark plugs for ten samples are 4,3,4,5,3,4,5,3,5,4 in a sample size of 100. Selecting suitable control chart, find upper control limit

No. of defectives Spark plugs for ten samples are 4,3,4,5,3,4,5,3,5,4 in a sample size of 100. Selecting suitable control chart, find upper control limit and lower control limit. Also give your comment either the process is under control or not.

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