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University of Maryland *

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Course

200

Subject

Statistics

Date

Apr 3, 2024

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jpg

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1

Uploaded by DeaconCrown13728

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One research study of illegal drug use among 12- to 17-year-olds reported a decrease in use (from 11.4% in 1997) to 9.6% now. Suppose a survey in a large high school reveals that, in a random sample of 1,046 students, 96 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. O A. Hy:p<0.096 @® B. Hy:p=0.096 H,: p=0.096 H,: p<0.096 O C. Hy:p=0.096 O D. Hy:p=0.096 H,: p>0.096 H,: p#0.096 Find the test statistic. z= (Round to two decimal places as neededx —_— Q . L\ b Find the P-value for the found test statistic. P-value = (Round to four decimal places as needed.) x (“j . g 2_ }6
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