According to a publication, 13.9% of 18 to 25-year-olds were users of marijuana in 2000. A recent poll of 1366 randomly selected 18 to 25-year-olds revealed that 221 currently use marijuana. At the 1% significance level, do the data provide sufficient evidence to conclude that the percentage of 18 to 25-year-olds who currently use marijuana has changed from the 2000 percentage of 13.9%? Use the one-proportion z-test to perform the appropriate hypothesis test, after checking the conditions for the procedure. What are the hypotheses for the one-proportion z-test? Họ: p=: H3 p I (Type integers or decimals.) What is the test statistic? z= (Round to two decimal places as needed.) Identify the P-value. The P-value is (Round to four decimal places as needed.) What is the correct conclusion for the hypothesis test? O A. Do not reject Ho; the data do provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 13.9%. O B. Reject Ho; the data do provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 13.9%. O C. Reject Ho; the data do not provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 13.9%. O D. Do not reject Hg; the data do not provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 13.9%.
According to a publication, 13.9% of 18 to 25-year-olds were users of marijuana in 2000. A recent poll of 1366 randomly selected 18 to 25-year-olds revealed that 221 currently use marijuana. At the 1% significance level, do the data provide sufficient evidence to conclude that the percentage of 18 to 25-year-olds who currently use marijuana has changed from the 2000 percentage of 13.9%? Use the one-proportion z-test to perform the appropriate hypothesis test, after checking the conditions for the procedure. What are the hypotheses for the one-proportion z-test? Họ: p=: H3 p I (Type integers or decimals.) What is the test statistic? z= (Round to two decimal places as needed.) Identify the P-value. The P-value is (Round to four decimal places as needed.) What is the correct conclusion for the hypothesis test? O A. Do not reject Ho; the data do provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 13.9%. O B. Reject Ho; the data do provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 13.9%. O C. Reject Ho; the data do not provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 13.9%. O D. Do not reject Hg; the data do not provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 13.9%.
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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![**Hypothesis Testing on Marijuana Use Among 18 to 25-Year-Olds**
According to a publication, 13.9% of 18 to 25-year-olds used marijuana in 2000. A recent poll of 1366 randomly selected 18 to 25-year-olds revealed that 221 currently use marijuana. At the 1% significance level, do the data provide sufficient evidence to conclude that the percentage of 18 to 25-year-olds who currently use marijuana has changed from the 2000 percentage of 13.9%? Use the one-proportion z-test to perform the appropriate hypothesis test, after checking the conditions for the procedure.
**Hypotheses for the One-Proportion Z-Test:**
\( H_0: p = \) [ ]
\( H_a: p \neq \) [ ]
(Type integers or decimals.)
**Test Statistic:**
\[ z = \] [ ]
(Round to two decimal places as needed.)
**Identify the P-value:**
The P-value is [ ]
(Round to four decimal places as needed.)
**Conclusion for the Hypothesis Test:**
- A. Do not reject \( H_0 \); the data do provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 13.9%.
- B. **Reject \( H_0 \); the data do provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 13.9%.**
- C. Reject \( H_0 \); the data do not provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 13.9%.
- D. Do not reject \( H_0 \); the data do not provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 13.9%.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb0eba2fa-d98a-4004-a218-8be54dfcaae8%2F43eb52cc-e2ad-4c2d-9395-900c4cec94d7%2Fy7ulygy_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Hypothesis Testing on Marijuana Use Among 18 to 25-Year-Olds**
According to a publication, 13.9% of 18 to 25-year-olds used marijuana in 2000. A recent poll of 1366 randomly selected 18 to 25-year-olds revealed that 221 currently use marijuana. At the 1% significance level, do the data provide sufficient evidence to conclude that the percentage of 18 to 25-year-olds who currently use marijuana has changed from the 2000 percentage of 13.9%? Use the one-proportion z-test to perform the appropriate hypothesis test, after checking the conditions for the procedure.
**Hypotheses for the One-Proportion Z-Test:**
\( H_0: p = \) [ ]
\( H_a: p \neq \) [ ]
(Type integers or decimals.)
**Test Statistic:**
\[ z = \] [ ]
(Round to two decimal places as needed.)
**Identify the P-value:**
The P-value is [ ]
(Round to four decimal places as needed.)
**Conclusion for the Hypothesis Test:**
- A. Do not reject \( H_0 \); the data do provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 13.9%.
- B. **Reject \( H_0 \); the data do provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 13.9%.**
- C. Reject \( H_0 \); the data do not provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 13.9%.
- D. Do not reject \( H_0 \); the data do not provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 13.9%.
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