Given the table below about traffic fatalities in the United States in 2013, answer the following questions: Alcohol- Not Alcohol- Total Related Related Traffic fatalities 2534 9873 12407 before 6pm Traffic fatalities after 7542 12770 20312 6pm Total 10076 22643 32719 What is the probability that out of two randomly selected traffic fatalities in 2013, neither were alcohol related? (Round to two decimal places) Given the table below about traffic fatalities in the United States in 2013, answer the following questions: Alcohol- Not Alcohol- Total Related Related Traffic fatalities 2534 9873 12407 before 6pm Traffic fatalities after 7542 12770 20312 6pm Total 10076 22643 32719 Given that a 2013 traffic fatality occurred after 6pm, what is the probability that it was alcohol-related? (Round to two decimal places) A random sample of 40 recent college graduates results in a mean time to graduate of 4.58 years, with a standard deviation of 1.10 years. Compute a 90% confidence interval for time to graduate with a bachelor's degree. From a random sample of 768 people ages 15-22, Rolling Stone magazine found that 672 preferred Harry Styles solo over when he was with the band One Direction. Obtain a point estimate for the proportion of people ages 15-22 who prefer Harry Styles solo versus when he was with One Direction. 1:41 Remaining Time: 2 hours, 20 minutes, 25 seconds. 5G 39 * Question Completion Status: Descriptive statistics for BMI (body mass index) for two different groups (people that regularly exercise and people who do not) are given below: No Exercise group: x =26.8 and s 1 =4.5, n=20 x1 Exercise group: x =24.5 and s 2 x2 =2.8, n=17 Test whether the exercise group has a lower BMI than the No Exercise group at a=0.05 level of significance. We will assume conditions for normality are verified and affirmed. What would be the conclusion of this test based off of your p-value? Reject H There is insufficient evidence to 0 conclude that the Exercise group has a lower BMI than the No Exercise group. Fail to Reject H 0 There is insufficient evidence to conclude that the Exercise group has a lower BMI than the No Exercise group. Fail to Reject H 0 There is sufficient evidence to conclude that the Exercise group has a lower BMI than the No Exercise group. Reject H 0 There is sufficient evidence to conclude that the Exercise group has a lower BMI than the No Exercise aroup. blackboard.forsythtech.edu