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In: Statistics and Probability

One research study of illegal drug use among​ 12- to​ 17-year-olds reported a decrease in use​...

One research study of illegal drug use among​ 12- to​ 17-year-olds reported a decrease in use​ (from 11.4% in​ 1997) to 9.9​% now. Suppose a survey in a large high school reveals​ that, in a random sample of 1 comma 047 ​students, 94 report using illegal drugs. Use a 0.05 significance level to test the​ principal's claim that illegal drug use in her school is below the current national average.

Formulate the null and alternative hypotheses. Choose the correct answer below.

Find the test statistic. z=__

Find the P-Value. P-value =

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orchestra answered 1 year ago
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