Multiple Choice
Piston rings for an automotive engine are produced by a forging process.We wish to monitor the inside diameter of the rings manufactured by this process using an and an s control chart.Samples of size 4 are to be taken at regular intervals,and the sample means and standard deviations are computed and plotted on the charts in time order.The target values for the inside diameter are a mean of = 75 millimeters and a standard deviation of = 0.02 millimeters.The control chart constants are (partially) reproduced below.
What is the upper control limit for the
Chart?
A) 0.03 millimeters
B) 74.97 millimeters
C) 75 millimeters
D) 75.03 millimeters
Correct Answer:

Verified
Correct Answer:
Verified
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