Solution Found!
To construct a p-chart, 20 samples of size 150 were drawn
Chapter 13, Problem 41E(choose chapter or problem)
To construct a p-chart, 20 samples of size 150 were drawn from a process. The proportion of defective items found in each of the samples is listed in the next table.
a. Calculate and plot the centerline and the upper and lower control limits for the p-chart.
b. Calculate and plot the A, B, and C zone boundaries on the p-chart.
c. Plot the sample proportions on the p-chart.
d. Is the process under control? Explain.
e. Should the control limits and centerline of part a be used to monitor future process output? Explain.
Questions & Answers
QUESTION:
To construct a p-chart, 20 samples of size 150 were drawn from a process. The proportion of defective items found in each of the samples is listed in the next table.
a. Calculate and plot the centerline and the upper and lower control limits for the p-chart.
b. Calculate and plot the A, B, and C zone boundaries on the p-chart.
c. Plot the sample proportions on the p-chart.
d. Is the process under control? Explain.
e. Should the control limits and centerline of part a be used to monitor future process output? Explain.
ANSWER:Step 1 of 10
Here the data refers the 20 samples of size 150 were drawn from a process The
proportion of defective items found in each of samples.
