Question: Given there are five (05) sample taken. The sample means (X-bar) are: 15.36,14.61.16.36,20.28, and 15.77 respectively. Also, the corresponding ranges are: 10.79.8.37.4.81, 8.17, and 3.31

Given there are five (05) sample taken. The
Given there are five (05) sample taken. The sample means (X-bar) are: 15.36,14.61.16.36,20.28, and 15.77 respectively. Also, the corresponding ranges are: 10.79.8.37.4.81, 8.17, and 3.31 respectively. If the lower controllimit for R-chart is 0.57, what should be the most appropriate the sample size? O a None is correct O b. 4 . 5 O d. 7 3

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