Question: use excel and show formulas please. if you cannot please dont bother doing it thanks for understanding. 5-2. After a number of complaints about its
5-2. After a number of complaints about its directory assistance, a telephone company examined samples of calls to determine the frequency of wrong numbers given to callers. Each sample consisted of 100 samples (n=100). Is the process stable (i.e, in control)? Determine 2-sigma control limits
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