An automobile dealer checks on the quality of the service department by keeping a log of customer complaints and incidents of repeat service.Regular samples of 25 customers are taken,and based on these data the process proportion of customer complaints and incidences of repeat service is estimated to be = 0.072.What would be the value of the center line for a p chart of future samples of size 25?
A)0.003
B)0.052
C)0.072
D)0.155

Question

An automobile dealer checks on the quality of the service department by keeping a log of customer complaints and incidents of repeat service.Regular samples of 25 customers are taken,and based on these data the process proportion of customer complaints and incidences of repeat service is estimated to be  = 0.072.What would be the value of the center line for a p chart of future samples of size 25?
A)0.003 
B)0.052 
C)0.072 
D)0.155

Quizplus · Accepted Answer

The center line of a p chart is the estimated process proportion, which is given as 0.072 in the question. Therefore, the answer is C.

An Automobile Dealer Checks on the Quality of the Service