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Solved: Construct and interpret an R-chart for the data in
Chapter 13, Problem 26E(choose chapter or problem)
Construct and interpret an R-chart for the data in Exercise 13.11 (p. 13-29).
a. Calculate and plot the upper control limit and, if appropriate, the lower control limit.
b. Calculate and plot the A, B, and C zone boundaries on the R-chart.
c. Plot the sample ranges on the R-chart and determine whether the process is in control.
Questions & Answers
QUESTION:
Construct and interpret an R-chart for the data in Exercise 13.11 (p. 13-29).
a. Calculate and plot the upper control limit and, if appropriate, the lower control limit.
b. Calculate and plot the A, B, and C zone boundaries on the R-chart.
c. Plot the sample ranges on the R-chart and determine whether the process is in control.
ANSWER:Step 1 of 7
Here we have the data of 20 samples, which are collected for the constructing of an
-chart.
We have to calculate the mean and range for each sample.
By definitions, the mean is given as k samples and the range
of the sample is given as