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A luxury hotel tracks the number of complaints per month. When the process is in control,...

A luxury hotel tracks the number of complaints per month. When the process is in control, there is an average of 36 complaints per month. Assume the number of complaints per month is distributed as Poisson.

  1. Compute upper and lower control limits for a c-chart using 95 percent level of confidence.

  1. Suppose for the past six months the number of complaints per month were 15, 26, 35, 43, 49, and 56 respectively. Plot the number of complaints per month on the chart. Is the process in statistical control? Explain your thorough understanding of the process.
Math   Statistics-And-Probability   
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