Maurice Tutor

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Category > Management Posted 30 Sep 2017 My Price 6.00

manufacturing process

A control chart controls a manufacturing process. Measurements are taken while the process is operating one time each hour. At each hour five sample parts are measured, and the results are recorded and plotted on a control chart. During the last five hours the following data was observed for X bar and R. The upper control limit for X bar values is 142 and the lower control limit is 102. The value on the control chart for X bar is 122 and the value for R bar is 3. What can be said about this process?

 

9 A.M.

10 A.M.

11 A.M.

12 A.M.

1 P.M.

X bar

125

126

127

128

129

R

2

1

4

2

3

a. The process is not in control and should be adjusted.

b. The process is in control and should not be adjusted.

c. The value of R is too high at 11.

d. The value for X bar is outside the control limits.

Answers

Maurice Tutor
(5)
Status NEW Posted 30 Sep 2017 11:09 AM My Price 6.00

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