Question: I NEED ANSWER ASAP WITH DETAILS In a process control, UCL and LCL have been calculated as 48.06 and 41.94, respectively, where the sample size

I NEED ANSWER ASAP WITH DETAILS

In a process control, UCL and LCL have been calculated as 48.06 and 41.94, respectively, where the sample size is 20.

a) Estimate the population mean and population standard deviation.

b) Can we conclude that the process is under control?

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