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X BAR AND R VALUES FOR THE 10 SAMPLES OF TEA CONTAINING 30 PACKETS X Bar 320 310 330 360 290 280 340 320 360 300 R 12 16 14 18 22 23 10 13 27 25 Jhilimil Tea company has a packaging machine which pack tea in plastic packets, to ensure consistent quantity in each packet a sample of 30 packets were taken per hour in a day and its mean and range is recorded. Around 10 such sample were taken per day. from the following data answer the following question Q.No 1: Comment on the type of data being collected, which control chart is appropriate for the data and why. Q.No 2: what are the values for Central Line, Upper control limit and lower control limit, also show the entire calculations for the response Q.No 3: What are your interpretations for the above samples, can we accept that the system is in control, give justification for your answerl |
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