Determine If a Display of Data Is Appropriate

question 3

Multiple Choice

Determine if a display of data is appropriate.
-A regional survey was carried out to gauge public opinion on the controversial
Arizona Immigration Law. The results are displayed in the segmented bar chart below.
Which of the following statements is true?

• A) A greater percentage of Republicans oppose the law compared to Democrats.
• B) A greater percentage of Republicans oppose the law compared to Independents.
• C) Opinion about the law appears to be independent of political party affiliation.
• D) A greater percentage of Democrats oppose the law compared to Republicans.
• E) The segmented bar chart is not appropriate for these data.

Understand how rational decisions are made by weighing marginal benefits against marginal costs.

Grasp the impact of incentives on individual and economic choices.

Understand the fundamental role of utilities in economic theory.

Acknowledge that using resources for one purpose reduces their availability for other purposes.

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Definitions:

Margin of Error

The margin of error is a statistic expressing the amount of random sampling error in a survey's results, indicating the range within which the true value lies with a certain level of confidence.

Critical Value

The threshold value(s) in a hypothesis test, beyond which the null hypothesis is rejected in favor of the alternative hypothesis.

Standard Error

The standard deviation of a sampling distribution indicating how much sample means differ from the actual population mean.

Point Estimate

A single value or statistic that serves as the best guess or most likely value for a population parameter based on sample data.