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.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Find the standard score (round to two decimal places as needed.)
z=
Find the P-value (round to four decimal places as needed.)
P-value=
Make an Conclusion
Transcribed Image Text:One research study of illegal drug use among 12- to 17-year-olds reported 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.
C
Formulate the null and alternative hypotheses. Choose the correct answer below.
OA. Ho: p=0.098
O B. Ho: p<0.098
H₂: P# 0.098
H₂: p=0.098
C. Ho: p=0.098
Ha: p<0.098
O D. Ho: p=0.098
Ha: p > 0.098
Find the test statistic.
z = (Round to two decimal places as needed.)
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