TABLE 14-2
A political pollster randomly selects a sample of 100 voters each day for 8 successive days and asks how many will vote for the incumbent. The pollster wishes to construct a p chart to see if the percentage favoring the incumbent candidate is too erratic.
-Referring to Table 14-2, which expression best characterizes the p chart?
A) in control
B) increasing trend
C) decreasing trend
D) individual outliers

Question

TABLE 14-2
A political pollster randomly selects a sample of 100 voters each day for 8 successive days and asks how many will vote for the incumbent. The pollster wishes to construct a p chart to see if the percentage favoring the incumbent candidate is too erratic. 
-Referring to Table 14-2, which expression best characterizes the p chart?
A) in control 
B) increasing trend 
C) decreasing trend 
D) individual outliers

Quizplus · Accepted Answer

The p chart is used to determine if the percentage of voters favoring the incumbent candidate is too erratic. The table does not indicate any trend or individual outliers, and therefore the p chart is in control.

TABLE 14-2 A Political Pollster Randomly Selects a Sample of 100 Voters