Question: Wilhelm Stein, the Assistant Purser, has tracked billing errors for the past 21 cruises. Based on this data, determine the control limits for billing
Wilhelm Stein, the Assistant Purser, has tracked billing errors for the past 21 cruises. Based on this data, determine the control limits for billing errors. Explain any concerns you have about using the percentage of bills with errors as a valid measure for this analysis. _x= 49 o_x= 12.348 Lower Control Limit = _x - Zo_x = 49-3*12.348 = 11.956 Central Control Limit = _x = 49 Upper Control Limit = _x + Zo_x = 49+3*12.348 = 86.044
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ANS WER COM PUT ATION Let n 21 x 2 714 1 565 Lower Control Limit x Zo x 2 714 3 1 565 2 283 Centra... View full answer
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