Q51356b Draw the control charts for X (mean) and R (range) for the above example with the following information:

Sample no. X R
1 3.456 0.012
2 3.467 0.056
3 3.385 0.021
4 3.380 0.045
5 3.387 0.028
6 3.450 0.058
7 3.560 0.018
8 3.670 0.035
9 3.577 0.023
10 3.213 0.067

For n = 5,                   

d2 = 2.326

d3 = 0.864

Solution:

21 8 image 1210
21 8 image 1211
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