Question: plz i want the answer 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
plz i want the answer

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 control limit for R-chart is 0.57, what should be the most appropriate the sample size? O a. 7 Ob. 5 O c. None is correct O d. 3 Oe. 4
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