Question: In Example 6.2, the ambulance supervisor now has decided to double the response time sample size to 8 calls per day. Calculate the new UCL

In Example 6.2, the ambulance supervisor now has decided to double the response time sample size to 8 calls per day. Calculate the new UCL and LCL for a revised X - chart. For the next week, you record the following sample of daily mean response times: 5.2, 6.4, 6.2, 5.8, 5.7, 6.3, and 5.6. Would you be concerned?

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