A Statistician Consulting for a State Department of Transportation Conducts $H _ { 0 }$

question 15

Multiple Choice

A statistician consulting for a state department of transportation conducts a study to see if the proportion of drivers who are intoxicated has decreased since last year.
$H _ { 0 }$ : The proportion is the same as last year
$H _ { A }$ : The proportion is less than last year.
The $P$ -value of a significance test is greater than the significance level. She can conclude:

• A) the alternative hypothesis is true.
• B) the null hypothesis is true.
• C) there is not enough evidence to reject the null hypothesis.
• D) the test was too powerful.
• E) there is enough evidence to reject the null hypothesis.

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Definitions:

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A personal motivation to set and attain challenging goals, often characterized by determination and perseverance to achieve a high standard of success.

Innovative Thinking

The ability to come up with new ideas, creative solutions, and novel approaches to problems.

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The ability to understand, manage, and use one’s own emotions in positive ways to communicate effectively, empathize with others, and overcome challenges.