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 see if the percentage favoring
The incumbent candidate is too erratic. Which of the following would be the most appropriate
Analysis to perform?
A) Multiple linear regression.
B) Exponential smoothing.
C) Construct a p-chart.
D) Perform a Levene's test.

Question

Quizplus · Accepted Answer

A p-chart is used to monitor the proportion of defectives in a process, which in this case can be applied to track the proportion of voters favoring the incumbent over time to see if it is stable or erratic.

A Political Pollster Randomly Selects a Sample of 100 Voters