According to a certain government agency for a large country, the proportion of fatal traffic accidents in the country in which the driver had a positive blood alcohol concentration (BAC) is 0.34. Suppose a random sample of 109 traffic fatalities in a certain region results in 50 that involved a positive BAC. Does the sample evidence suggest that the region has a higher proportion of traffic fatalities involving a positive BAC than the country at the α = 0.01 level of significance? Because npo (1-Po) =10, the sample size is (Round to one decimal place as needed.) 5% of the population size, and the sample the requirements for testing the hypothesis ▼satisfied.
According to a certain government agency for a large country, the proportion of fatal traffic accidents in the country in which the driver had a positive blood alcohol concentration (BAC) is 0.34. Suppose a random sample of 109 traffic fatalities in a certain region results in 50 that involved a positive BAC. Does the sample evidence suggest that the region has a higher proportion of traffic fatalities involving a positive BAC than the country at the α = 0.01 level of significance? Because npo (1-Po) =10, the sample size is (Round to one decimal place as needed.) 5% of the population size, and the sample the requirements for testing the hypothesis ▼satisfied.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![According to a certain government agency for a large country, the proportion of fatal traffic accidents in the country in which the driver had a positive blood alcohol concentration (BAC) is 0.34. Suppose a random sample of 109 traffic
fatalities in a certain region results in 50 that involved a positive BAC. Does the sample evidence suggest that the region has a higher proportion of traffic fatalities involving a positive BAC than the country at the α = 0.01 level
of significance?
=
Because npo (1 - Po)
10, the sample size is
(Round to one decimal place as needed.)
5% of the population size, and the sample
the requirements for testing the hypothesis
satisfied.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fac3be618-b645-4bd8-855b-808ff3fc18d4%2F4962dd5b-4766-4140-bf30-ee41c8c9910e%2Ftjoypu_processed.png&w=3840&q=75)
Transcribed Image Text:According to a certain government agency for a large country, the proportion of fatal traffic accidents in the country in which the driver had a positive blood alcohol concentration (BAC) is 0.34. Suppose a random sample of 109 traffic
fatalities in a certain region results in 50 that involved a positive BAC. Does the sample evidence suggest that the region has a higher proportion of traffic fatalities involving a positive BAC than the country at the α = 0.01 level
of significance?
=
Because npo (1 - Po)
10, the sample size is
(Round to one decimal place as needed.)
5% of the population size, and the sample
the requirements for testing the hypothesis
satisfied.
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Follow-up Question
![According to a certain government agency for a large country, the proportion of fatal traffic accidents in the country in which the driver had a positive blood alcohol concentration (BAC) is 0.34. Suppose a random sample of 109 traffic
fatalities in a certain region results in 50 that involved a positive BAC. Does the sample evidence suggest that the region has a higher proportion of traffic fatalities involving a positive BAC than the country at the x = 0.01 level
of significance?
Because npo (1-Po) = 24.5 > 10, the sample size is
(Round to one decimal place as needed.)
What are the null and alternative hypotheses?
p = 0.34 versus H₁: p > 0.34
Ho: p
(Type integers or decimals. Do not round.)
Find the test statistic, Zo.
Zo = 2.62 (Round to two decimal places as needed.)
Find the P-value.
P-value = (Round to three decimal places as needed.)
less than 5% of the population size, and the sample
is given to be random,
the requirements for testing the hypothesis are satisfied.](https://content.bartleby.com/qna-images/question/ac3be618-b645-4bd8-855b-808ff3fc18d4/e662c284-40f5-4e66-aa9a-d3f5cebf88ad/p5w8id_thumbnail.png)
Transcribed Image Text:According to a certain government agency for a large country, the proportion of fatal traffic accidents in the country in which the driver had a positive blood alcohol concentration (BAC) is 0.34. Suppose a random sample of 109 traffic
fatalities in a certain region results in 50 that involved a positive BAC. Does the sample evidence suggest that the region has a higher proportion of traffic fatalities involving a positive BAC than the country at the x = 0.01 level
of significance?
Because npo (1-Po) = 24.5 > 10, the sample size is
(Round to one decimal place as needed.)
What are the null and alternative hypotheses?
p = 0.34 versus H₁: p > 0.34
Ho: p
(Type integers or decimals. Do not round.)
Find the test statistic, Zo.
Zo = 2.62 (Round to two decimal places as needed.)
Find the P-value.
P-value = (Round to three decimal places as needed.)
less than 5% of the population size, and the sample
is given to be random,
the requirements for testing the hypothesis are satisfied.
Solution
Follow-up Question
![According to a certain government agency for a large country, the proportion of fatal traffic accidents in the country in which the driver had a positive blood alcohol concentration (BAC) is 0.34. Suppose a random sample of 109 traffic
fatalities in a certain region results in 50 that involved a positive BAC. Does the sample evidence suggest that the region has a higher proportion of traffic fatalities involving a positive BAC than the country at the x = 0.01 level
of significance?
Because npo (1-Po = 24.5 > 10, the sample size is
(Round to one decimal place as needed.)
What are the null and alternative hypotheses?
p = 0.34 versus H₁: p> 0.34
Ho: P
(Type integers or decimals. Do not round.)
Find the test statistic, Zo.
Zo (Round to two decimal places as needed.)
=
less than 5% of the population size, and the sample
is given to be random,
the requirements for testing the hypothesis are satisfied.](https://content.bartleby.com/qna-images/question/ac3be618-b645-4bd8-855b-808ff3fc18d4/035cc5f0-bc24-45ad-b8d3-da53e66f203a/jhk3e6j_thumbnail.png)
Transcribed Image Text:According to a certain government agency for a large country, the proportion of fatal traffic accidents in the country in which the driver had a positive blood alcohol concentration (BAC) is 0.34. Suppose a random sample of 109 traffic
fatalities in a certain region results in 50 that involved a positive BAC. Does the sample evidence suggest that the region has a higher proportion of traffic fatalities involving a positive BAC than the country at the x = 0.01 level
of significance?
Because npo (1-Po = 24.5 > 10, the sample size is
(Round to one decimal place as needed.)
What are the null and alternative hypotheses?
p = 0.34 versus H₁: p> 0.34
Ho: P
(Type integers or decimals. Do not round.)
Find the test statistic, Zo.
Zo (Round to two decimal places as needed.)
=
less than 5% of the population size, and the sample
is given to be random,
the requirements for testing the hypothesis are satisfied.
Solution
Follow-up Question
![According to a certain government agency for a large country, the proportion of fatal traffic accidents in the country in which the driver had a positive blood alcohol concentration (BAC) is 0.34. Suppose a random sample of 109 traffic
fatalities in a certain region results in 50 that involved a positive BAC. Does the sample evidence suggest that the region has a higher proportion of traffic fatalities involving a positive BAC than the country at the α = 0.01 level
of significance?
Because npo (1-Po) = 24.5 > 10, the sample size is
(Round to one decimal place as needed.)
What are the null and alternative hypotheses?
Ho:
versus H₁:
(Type integers or decimals. Do not round.)
less than 5% of the population size, and the sample
is given to be random,
the requirements for testing the hypothesis are satisfied.](https://content.bartleby.com/qna-images/question/ac3be618-b645-4bd8-855b-808ff3fc18d4/762927f2-6d37-4263-aeae-43e3a10e79d2/ntsv4dc_thumbnail.png)
Transcribed Image Text:According to a certain government agency for a large country, the proportion of fatal traffic accidents in the country in which the driver had a positive blood alcohol concentration (BAC) is 0.34. Suppose a random sample of 109 traffic
fatalities in a certain region results in 50 that involved a positive BAC. Does the sample evidence suggest that the region has a higher proportion of traffic fatalities involving a positive BAC than the country at the α = 0.01 level
of significance?
Because npo (1-Po) = 24.5 > 10, the sample size is
(Round to one decimal place as needed.)
What are the null and alternative hypotheses?
Ho:
versus H₁:
(Type integers or decimals. Do not round.)
less than 5% of the population size, and the sample
is given to be random,
the requirements for testing the hypothesis are satisfied.
Solution
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