Sample Size, n	Mean Factor, A2	Upper Range, D4	Lower Range, D3
2	1.880	3.268	0
3	1.023	2.574	0
4	0.729	2.282	0
5	0.577	2.115	0
6	0.483	2.004	0
7	0.419	1.924	0.076
8	0.373	1.864	0.136
9	0.337	1.816	0.184
10	0.308	1.777	0.223
12	0.266	1.716	0.284

Your supervisor. Lisa Lehmann, has asked that you report on the output of a machine on the factory thor. This machine is supposed to be producing optical lerees with a mean weight of 58 grams and a range of Sgrams. The following table contains the data for a sample size of n-6 laken during the past 3 hours: D D 1 2 3 4 5 7 8 10 7 61 52 52 56 54 54 52 53 51 52 R R 4 7 4 4 8 3 7 9 3 Sarwple 6 9 a) What are the chart control limits when the machine is working properly? UCL = grasne round your response to two decina paces). LCL, = grams (round your response to two decimal pisces). , Choose the correct graph of the sample data for the chari. . OB. Oc. 60.00- * C0- GO.COM 30.00 GO a 56.00 55 SS.CO 55.00 . 30.00 53.00-1 0.0- 46.00 45.00 46.00 D 12 Serpe U Sample Sample bi What are the chart control limits when the machine is working property? UCLA - grams (round your response to decimal places). LCL,- grains fround your rescrise de la decimal place) Choose the correct graph of the sample data for the Achar. OA . OC. Q a 10.00- 8.00- 10.00 53.00 5.co 4.00 200 Adjwetable weight in grens 10.00+ 8.00- . 6.00- 4.00- 4.00- 2.KH DH 020 0 100- 2 12 Sample 1 Sample Sample c) What seems to be happening? Has the process been in control? O Yes O No