TABLE 18-2
a Political Pollster Randomly Selects a Sample

question 48

Multiple Choice

TABLE 18-2
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.
$\begin{array}{cc}\hline\text { Sample }&\text { Number Favoring}\\\text { (Day) }& \text { Incumbent Candidate }\\ \hline1 & 57 \\2 & 57 \\3 & 53 \\4 & 5 1 \\5 & 5 5 \\6 & 6 0 \\7 &5 6 \\8 & 5 9\\\hline\end{array}$


-Referring to Table 18-2, what is the numerical value of the center line for the p chart?

• A) 0.63
• B) 0.53
• C) 0.66
• D) 0.56

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Definitions:

Genetic Material

The DNA or RNA present in cells which codes for genetic information necessary for the development, functioning, and reproduction of living organisms.

Endospore

A resting cell formed by certain bacteria; highly resistant to heat, radiation, and disinfectants.

Cell Membrane

The semipermeable membrane surrounding the cytoplasm of a cell, controlling the passage of substances in and out of the cell.

Lyses

The breakdown or decomposition of cells by rupture of the cell wall or membrane.