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A Nationwide Parcel Delivery Service Keeps Track of the Number

Question 87

Multiple Choice

A nationwide parcel delivery service keeps track of the number of late deliveries (more than 30 minutes past the time promised to clients) per day. They plan on using a control chart to plot their results. Which type of control chart(s) would you recommend?


A) both x-bar chart and R-chart
B) p-chart
C) c-chart
D) x-bar chart
E) both p-chart and c-chart

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