Question: a. Using this data to solve the problem by using X bar chart and R chart? b. What is the difference between X bar chart
a. Using this data to solve the problem by using X bar chart and R chart?
b. What is the difference between X bar chart and R chart?
c. Draw the control chart for both X bar chart and R chart?
d. Explain the result?
4. Solving the following problem (C -charts)?

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