According to a certain govemment agency for a large country, the proportion of fatal traffic accidents...

Transcribed Image Text:

According to a certain govemment 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 0.32. Suppose a random sample of 115 traffic fatalities in a certain region results in 48 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=0.01 level of significance? Because np (1-P)-10, the sample size is testing the hypothesis satisfied (Round to one decimal place as needed.) What are the null and alterative hypotheses? versus H, (Type integers or decimals. Do not round) Find the test statistic, Zo Zo (Round to two decimal places as needed) Find the P-value P-value (Round to three decimal places as needed) 5% of the population size, and the sample the requirements for Determine the conclusion for this hypothesis test. Choose the correct answer below OA. 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. OB. 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 OC. Since P-value According to a certain govemment 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 0.32. Suppose a random sample of 115 traffic fatalities in a certain region results in 48 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=0.01 level of significance? Because np (1-P)-10, the sample size is testing the hypothesis satisfied (Round to one decimal place as needed.) What are the null and alterative hypotheses? versus H, (Type integers or decimals. Do not round) Find the test statistic, Zo Zo (Round to two decimal places as needed) Find the P-value P-value (Round to three decimal places as needed) 5% of the population size, and the sample the requirements for Determine the conclusion for this hypothesis test. Choose the correct answer below OA. 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. OB. 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 OC. Since P-value