(Solved): A control chart is to be designed to have the capability to detect a shift in the process mean wit ...

A control chart is to be designed to have the capability to detect a shift in the process mean within 5 hrs. To achieve this requirement, which design could work? a. -0.3, sampling frequency every 3.25 hr b. B-0.7, sampling frequency every 3.25 hr c. -0.8, sampling frequency every 4 hr d. B-0.2, sampling frequency every 4 hr