SCENARIO 15-2
a Political Pollster Randomly Selects a Sample of 100

SCENARIO 15-2
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. $$\begin{array} { c c } \begin{array} { c } \text { Sample } \\\text { (Day) }\end{array} & \begin{array} { c } \text { Number Favoring } \\\text { IncumbentCandidate }\end{array} \\\hline 1 & 57 \\2 & 57 \\3 & 53 \\4 & 51 \\5 & 55 \\6 & 60 \\7 & 56 \\8 & 59\end{array}$$
-Referring to SCENARIO 15-2, what is the numerical value of the upper control limit for the pchart?

A) 0.92
B) 0.89
C) 0.71
D) 0.62

Correct Answer:

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