Question: Refer to the table Eactors for Computing Control Chart Limits (3 sioma for this problem, Your supervisor, Lisa Lehmann, has asked that you report on

Refer to the table Eactors for Computing Control

Refer to the table Eactors for Computing Control Chart Limits (3 sioma for this problem, Your supervisor, Lisa Lehmann, has asked that you report on the output of a machine on the factory floor. This machine is supposed to be producing optical lens with a mean weight of 53 grams and a range of 5 grams. The following table contains the data for a sample size of n=6 taken during the past 3 hours: Sample 7 10 1 51 4 2 53 7 3 52 4 4 55 5 5 54 4 6 54 8 53 52 9 51 8 53 R 8 3 7 3 a) What are the x-chart control limits when the machine is working properly? UCLX = 55.42 grams (round your response to two decimal places) LCLX = 50,24 grams (round your response to two decimal places) a) What are the x-chart control limits when the machine is working properly? UCL; = grams (round your response to two decimal places). LCL = grams (round your response to two decimal places). Choose the correct graph of the sample data for the x-chart. O A. . O c. 60.00 60.00 60.00 55.00 55.00- 55.00 Adjustable weight in grams Adjustable weight in grams Adjustable weight in grams E 50.00- 50.00 50.00- 45.00 45.00- 45.00- 4 g Sample 4 Sample 8 Sample b) What are the R-chart control limits when the machine is working properly? UCLR grams (round your response to two decimal places). LCLR= grams (round your response to two decimal places). Choose the correct graph of the sample data for the R-chart. OA. . O C. C 10.00- 10.00+ 10.000 8.00- 8.00- 8.00- 6.00- 6.00- 6.00- 4.00- 4.00- 4.00- 2.00- 2.00 2.00- 0.00- 0 0.00- 0 0.00++ 12 12 8 Sample Sample Sample c) What seems to be happening? Has the process been in control? No O Yes 1: Data Table Sample Size, n Upper Range, D4 Lower Range, D 2 3 4 5 Mean Factor, A2 1.880 1.023 0.729 0.577 0.483 0.419 0.373 0.337 0.308 0.266 3.268 2.574 2.282 2.115 2.004 1.924 1.864 6 7 8 9 0.076 0.136 0.184 0.223 0.284 1.816 1.777 1.716 10 12

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