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
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 upper controllimit for X-bar chart is 20.59, what should be the most appropriate the sample size? a. 4 O b. 2 . 3 d. None is correct O e. 5
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