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 0.36. Suppose a random sample of 110 traffic fatalities in a certain region results in 49 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=0.05 level of significance?
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 0.36. Suppose a random sample of 110 traffic fatalities in a certain region results in 49 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=0.05 level of significance?
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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
0.36.
Suppose a random sample of
110
traffic fatalities in a certain region results in
49
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=0.05
level of significance?
![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 0.36. Suppose a random sample of 110 traffic fatalities in a
certain region results in 49 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 a = 0.05 level of significance?
Весause npo (1- Ро)
10, the sample size is
5% of the population size, and the sample
the requirements for testing the hypothesis
satisfied.
%D
(Round to one decimal place as needed.)
What are the null and alternative hypotheses?
Họ:
(Type integers or decimals. Do not round.)
versus H1:
Find the test statistic, zo.
Zo
| (Round to two decimal places as needed.)
%3D
Find the P-value.
P-value =
(Round to three decimal places as needed.)
Determine the conclusion for this hypothesis test. Choose the correct answer below.
A. Since P-value < a, reject the null hypothesis and conclude that there is sufficient evidence that the region has a higher proportion of traffic fatalities involving a positive BAC than the country.
B. Since P-value > x, do not reject the null hypothesis and conclude that there is not sufficient evidence that the region has a higher proportion of traffic fatalities involving a positive BAC than the country.
C. Since P-value < a, do not reject the null hypothesis and conclude that there is not sufficient evidence that the region has a higher proportion of traffic fatalities involving a positive BAC than the country.
O D. Since P-value > a, reject the null hypothesis and conclude that there is sufficient evidence that the region has a higher proportion of traffic fatalities involving a positive BAC than the country.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F52a4f1f1-ce5b-40a6-9442-4d09673e420e%2F25347408-48f1-4097-8b23-5ae0b5118e04%2Fq1ic1ww_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 0.36. Suppose a random sample of 110 traffic fatalities in a
certain region results in 49 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 a = 0.05 level of significance?
Весause npo (1- Ро)
10, the sample size is
5% of the population size, and the sample
the requirements for testing the hypothesis
satisfied.
%D
(Round to one decimal place as needed.)
What are the null and alternative hypotheses?
Họ:
(Type integers or decimals. Do not round.)
versus H1:
Find the test statistic, zo.
Zo
| (Round to two decimal places as needed.)
%3D
Find the P-value.
P-value =
(Round to three decimal places as needed.)
Determine the conclusion for this hypothesis test. Choose the correct answer below.
A. Since P-value < a, reject the null hypothesis and conclude that there is sufficient evidence that the region has a higher proportion of traffic fatalities involving a positive BAC than the country.
B. Since P-value > x, do not reject the null hypothesis and conclude that there is not sufficient evidence that the region has a higher proportion of traffic fatalities involving a positive BAC than the country.
C. Since P-value < a, do not reject the null hypothesis and conclude that there is not sufficient evidence that the region has a higher proportion of traffic fatalities involving a positive BAC than the country.
O D. Since P-value > a, reject the null hypothesis and conclude that there is sufficient evidence that the region has a higher proportion of traffic fatalities involving a positive BAC than the country.
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