Kent State directory service was getting complaints that incorrect phone numbers

Question

Kent State directory service was getting complaints that incorrect phone numbers were given to the callers The superviesox ta chose 10 days and examines all calls recewed on those days. The trequency of incorrect nbers given is recorded in the tan for each of the 10 days What control chart should be used? O x bar chart O R-chart p-chart O cchart QUESTION 10 What is the centerline for this SPC chart? 0 4 calls 5 calls 6 calls 7 calls QUESTION 11 What is the standard deviation for this SPC chart? 2.2361 Stop s Proctorio is sharing your screen. 2.4495

Explanation / Answer

9. C chart is useful

10. the central line is= 8+10+3+6+5+9+10+6+6+7= 70/10= 7

11.

12. option D is correct

13. option D is correct

14. the process is in control only

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