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Question: the response time for home warranty claim operators is an...

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The response time for home warranty claim operators is an important metric. Every day, JJ samples 4 calls and determines the length of time required to resolve the issue. Last week he found the following data: Sample Observations (in minutes) 5, 3, 6,10 7, 5,3, 5 1, 8, 3,12 4 5 7,6, 2,1 3, 15, 6, 12 Determine the upper and lower 3-sigma r-chart control limits UCL (rounded to 3 decimal places) LCL- (rounded to 3 decimal places)

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