Question

Red Top Cab Company receives multiple complaints per day about driver behavior. Over 9 days the owner recorded the number of calls to be 3, 0, 8, 9, 6, 7, 4, 9, and 8. What is the upper control limit for the 3-sigma c-chart?

A) 13.35

B) 8.45

C) 24.00

D) 0.00

E) 9.03

Answer

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