A Man Wanted to See If the Median Time to Get

question 42

Multiple Choice

A man wanted to see if the median time to get to work was at least 15 minutes. In a random sample of 40 days, he found that 30 days took more than 15 minutes and the rest took less than 15 minutes. Is there
Enough evidence to support his claim if he uses an =.05?

• A) The critical value is less than the test statistic; therefore, there is not enough evidence to support the hypothesis.
• B) The critical value is greater than the test statistic; therefore, there is not enough evidence to support the hypothesis.
• C) The critical value is less than the test statistic; therefore, there is enough evidence to support the hypothesis.
• D) The critical value is greater than the test statistic; therefore, there is enough evidence to support the hypothesis.

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Definitions:

Class Intervals

Ranges of values within which data points are grouped for frequency distribution purposes.

Histogram

A graphical representation of the distribution of numerical data, showing the frequency of data points within specified ranges.

Observations

The collected data points or measurements recorded during a scientific study or research project.

Symmetric

A characteristic of shapes or distributions that exhibit mirror-like similarity on either side of a central point or axis.