The Digi-Secure Company issues policies that protect clients from downtime costs due to computer system failures. It is very important to process the policies quickly because long cycle times not only put the client at risk, they could also lose business for Digi-Secure. Management is concerned that customer service is degrading because of long cycle times. The following table contains the data from five samples, each sample consisting of eight observations.

a. What is your estimate of the process average?
b. What is your estimate of the average range?
c. Are assignable causes present in this process?Explain.

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Observatiorn Sample23 4 5 678 11 76 10 13 10 8 2 9 13 10 8 12 12 12 13 3 10 9 6 9 10 10 1 13 4 10 9 10910 100 5 10 108 10 9 710 10