Every hour a quality control inspector measures the outside diameter of five parts. If the average of the means is 3 and the average range is 1.3, what is the upper control limit for the X-bar chart for this process? a. O b. -3.92 О с. 3.75 O d. 4.12 e. 5.74

Practical Management Science
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Every hour a quality control inspector measures the outside diameter of five parts. If the average of the
means is 3 and the average range is 1.3, what is the upper control limit for the X-bar chart for this
process?
O a. 0
O b. -3.92
O c.
3.75
O d. 4.12
O e. 5.74
Not ye
Transcribed Image Text:Every hour a quality control inspector measures the outside diameter of five parts. If the average of the means is 3 and the average range is 1.3, what is the upper control limit for the X-bar chart for this process? O a. 0 O b. -3.92 O c. 3.75 O d. 4.12 O e. 5.74 Not ye
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