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, 2.81,8.17, 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, 2.81,8.17, and 3.31 respectively. If the lower control limit for X-bar chart is 12.60, what should be the most appropriate the sample size? O a. 5 O b. 3 w O c. 4 O d. None is correct O e. 2
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