According to a publication, 12.6% of 18 to 25-year-olds were users of marijuana in 2000. A recent poll of 1377 randomly selected 18 to 25-year-olds revealed that 201 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 12.6%? 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? Ho: p=Ha: P (Type integers or decimals.) What is the test statistic? (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. Reject Ho; the data do not provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 12.6%. O B. Do not reject Ho; the data do not provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 12.6%. OC. Reject Ho; the data do provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 12.6%. O D. Do not reject Ho; the data do provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 12.6%.
According to a publication, 12.6% of 18 to 25-year-olds were users of marijuana in 2000. A recent poll of 1377 randomly selected 18 to 25-year-olds revealed that 201 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 12.6%? 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? Ho: p=Ha: P (Type integers or decimals.) What is the test statistic? (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. Reject Ho; the data do not provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 12.6%. O B. Do not reject Ho; the data do not provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 12.6%. OC. Reject Ho; the data do provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 12.6%. O D. Do not reject Ho; the data do provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 12.6%.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Transcribed Image Text:According to a publication, 12.6% of 18 to 25-year-olds were users of marijuana in 2000. A recent poll of 1377 randomly selected 18 to 25-year-olds revealed that 201
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 12.6%? 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?
Ho: p=: Hạ: p
(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. Reject H,; the data do not provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 12.6%.
O B. Do not reject Ho; the data do not provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 12.6%.
OC. Reject Ho the data do provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 12.6%.
O D. Do not reject H,; the data do provide sufficient evidence to conclude that the percentage who currently use marijuana has changed from 12.6%.
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