A quality inspector took five samples, each with four observations (n = 4), of the length oftime for glue to dry. The analyst computed the mean of each sample and then computed thegrand mean. All values are in minutes. Use this information to obtain three-sigma (i.e., z = 3)control limits for means of future times. It is known from previous experience that the standard deviation of the process is .02 minute.SAMPLE1 2 3 4 51 12.11 12.15 12.09 12.12 12.09Observation 2 12.10 12.12 12.09 12.10 12.143 12.11 12.10 12.11 12.08 12.134 12.08 12.11 12.15 12.10 12.12¯X 12.10 12.12 12.11 12.10 12.12

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Q: Determine the upper and lower control limits for a mean chart, if you choose to use a sample size of…

A: Mean = 50Standard deviation = 1.72Sample size = 5

Q: Using an R Chart, what are the upper and lower control limits?

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Q: Twenty samples, each consisting of 100 admission applications at a university, resulted in a total…

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Q: What is the UCL using 3-sigma?(round your response to two decimal places).

A: Formula:

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A: Here, For each day, I have been given the Mean and Range values, from this dataset, I would…

Q: its of 85 ± 3 had sam E, Which of the follov

A: THE ANSWER IS AS BELOW:

Q: 50 motor generators are inspected per day from a stable process. The best estimate of the fraction…

A: Sample size (n) = 50  The fraction of nonconforming is (po) = 0.076.

Statistical Process Control

The use of statistical methods to observe and manage a process to make sure that it operates at its full potential and thus produce a confirming product is called Statistical Process Control.