Table 20-13 The Following Table Shows the Distribution of Income in Widgetapolis

question 444

Multiple Choice

Table 20-13
The following table shows the distribution of income in Widgetapolis. ​
-Refer to Table 20-13. Twenty percent of all families have incomes above what level?

• A)$39,000
• B)$60,000
• C)$82,000
• D)$110,000

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Definitions:

Statistical Significance

Indicating that the observed results are unlikely to occur by chance alone, according to a predetermined threshold of probability.

Null Hypothesis

The hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.

Research Hypothesis

A statement predicting a significant relationship between variables that is tested through research.

Voter Preference

The inclination or favoritism of voters towards particular candidates, parties, or policies in an election.