Question: 4 5 6 Problem 2 (30 points) 7 The intensive care unit lab process has an average turnaround time of 22.4 minutes 3 and a

4 5 6 Problem 2 (30 points) 7 The intensive care unit lab process has an average turnaround time of 22.4 minutes 3 and a standard deviation of 1.2 minutes. Tne normal value for this service should be 20 minutes + 4 minutes. The administrator of the lab wants to find if the lab process is capable by applying the process capability index. 1 2 Cph min [(Xbar - LTL)/3s, (UTL - Xbar/3s ] B 1 Q1 Compute the process capability index (Cpk). Q2 If the average turnaround time is on the target value, what is the standrad deviation to meet the six sigma standard (process capability index=2)? 3
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