Calculate the center line and control limits

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A sandwich shop owner takes a daily sample of seven consecutive sandwich orders at a random time during the lunch rush and records the time it takes to complete each order. Past experience indicates that the process mean should be μ = 88 seconds, and the process standard deviation should be σ = 24 seconds.

Calculate the center line and control limits for an x control chart. (Round your answers to two decimal places.)

LCL=_____

UCL=____

Reference no: EM132188162

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