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

question 16

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.

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