Question: 1) If a process was sampled hourly for the past 30 hours with a sample mean size of 4 and then mean of the 30

1) If a process was sampled hourly for the past 30 hours with a sample mean size of 4 and then mean of the 30 samples was 52.43 and the mean of the 30 rages was 3.45

A- What would the UCL and LCL be for the range chart?

B- What is the standard deviation?

C- If the specifications for the process was 50 plus or minus 7, draw a sketch of the process distribution with the specifications limits labeled.

D- find the Cpk

E. what would be the capability index if the process was centered (Cp)

F. What would the process be capable of 3 sigma quality if the process was centered?

G- would the process be 6sigma capable with specifications if the process was centered?

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