Multiple Choice
A random sample of 49 cast aluminum pots is taken from a production line once every day.The number of defective pots is counted.The proportion of defective pots has been closely examined in the past and is believed to be 0.05. Refer to Exhibit 7-11.The sample proportions for the week are shown in the accompanying table. 
Is the production process in control?
A) No,since the sample proportions show a downward trend
B) No,since the sample proportions fall within the upper and lower control limits
C) Yes,since the sample proportions show a downward trend
D) Yes,since the sample proportions fall within the upper and lower control limits
Correct Answer:
Verified
Correct Answer:
Verified
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