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 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 X-bar chart is 12.36, what should be the most appropriate the sample size? a. 4 O O O b. 5 in C. 2 d. None is correct 3
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