One research study of illegal drug use among 12- to 17-year-olds reported a decrease in use (from 11.4% in 1997) to 9.8% now. Suppose a survey in a large high school reveals that, in a random sample of 1,047 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. Ho: p=0.098 B. Ho: p<0.098 Ha: P# 0.098 Ha: p=0.098 C. Ho: p=0.098 Ha: p<0.098 D. Ho: p=0.098 Ha: p > 0.098 Find the test statistic. z= (Round to two decimal places as needed.)

One research study of illegal drug use among 12- to 17-year-olds reported a decrease in use (from 11.4% in 1997) to 9.8% now. Suppose a survey in a large high school reveals that, in a random sample of 1,047 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. Ho: p=0.098 B. Ho: p<0.098 Ha: P# 0.098 Ha: p=0.098 C. Ho: p=0.098 Ha: p<0.098 D. Ho: p=0.098 Ha: p > 0.098 Find the test statistic. z= (Round to two decimal places as needed.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 30PPS

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