Determine two-sigma control limits using the above data


The postmaster of a small western town receives a certain number of complaints each day about mail delivery.

DAY 1 2 3 4 5 6 7 8 9 10 11 12 13 14
  Number of complaints 4 11 16 8 9 6 5 14 15 7 6 4 2 11

a.  Determine two-sigma control limits using the above data. (Round your intermediate calculations to 4 decimal places and final answers to 3 decimal places. Leave no cells blank - be certain to enter "0" wherever required. Round up any negative control limit value to zero.)

UCL

LCL

b. Is the process in control?

No

Yes

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Operation Management: Determine two-sigma control limits using the above data
Reference No:- TGS02714510

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