TABLE 14- 1
A local newspaper has 10 delivery boys who each deliver the morning paper to 50 customers every day. The owner decides to record the number of papers delivered on time for a 10-day period for one of the delivery boys and construct a p chart to see whether the percentage is too erratic.
Number of Papers

-Referring to Table 14-1, which expression best characterizes the p chart?
A) cycles
B) increasing trend
C) in control
D) individual outliers

Question

TABLE 14- 1
A local newspaper has 10 delivery boys who each deliver the morning paper to 50 customers every day. The owner decides to record the number of papers delivered on time for a 10-day period for one of the delivery boys and construct a p chart to see whether the percentage is too erratic.
Number of Papers
 
-Referring to Table 14-1, which expression best characterizes the p chart?
A) cycles 
B) increasing trend 
C) in control 
D) individual outliers

Quizplus · Accepted Answer

A p chart is used to analyze the proportion or percentage of nonconforming items or events in a sample, and to determine whether the process is in control or out of control. In this case, the chart shows that the percentage of papers delivered on time by the delivery boy is relatively stable and consistent over the 10-day period, indicating that the process is in control. The other options are not applicable to a p chart.

TABLE 14- 1 A Local Newspaper Has 10 Delivery Boys Who Each Deliver