Answer Happy

A simple random sample of front-seat occupants involved in car crashes is obtained Among 2005 occupants not wearing seat belts, 35 were killed Among 7681 occupants wearing seat bels, 20 were kiled Ula the claim that seat belts are effective in reducing fatalities Complete parts (a) through (c) below a. Test the claim using a hypothesis lost. Consider the first sample to be the sample of occupants not wearing seat belts and the second sample to be the same of occupants wearing seat belts. What are the nut and atemative types for the othe OC HP Py Fever to that
a Test the claim using a hypothesis test Consider the first sample to be the sample of occupants not wearing seat belts and the second sample to be the sample of occupants wearing seat belts. What are the null and OA H₂ P SP₂ H₁: D₁ D₂ OD. H₂ Py = P₂ H₂ P1 P₂ Identify the test stat 20 (Round to two decimal places as needed) Identify the P-value P-value (Round to three decimal places as needed) What is the conclusion based on the hypothesis test? The Pivalue is the significance level of 0.05, so b. Test the claim by constructing an appropriate confidence interval OB M₂ Dy ZP₂ H₁: Dy #P₂ OR M₂: Py*P₂ H₂: Dy *P₂ the nut hypothesis. There altermative hypotheses for the hypothesis tem OC. M₂: Pr *P₂ H₂ D₂ D₂ OF. 1₂:0₂ H₁: Dy "Dy sufficient evidence to support the claim that the fatality rate is higher for those not weaning seat belts
vel of 0.05, so b. Test the claim by constructing an appropriate confidence interval The appropriate confidence interval (P₁-P₂)< (Round to three decimal places as needed) What is the conclusion based on the confidence interval? Because the confidence interval limits not wearing seat belts c. What do the results suggest about the effectivehess of seat bels? the null hypothesis. There 0, it appears that the two fatality rates are sufficient evidence to support the claim that the fatality rate is higher for those not wearing seat bes Because the confidence interval limits include OA The results suggest that the use of seat belts is associated with lower fatality rates than not using seat belts OB The results suggest that the use of seat belts is associated with the same fatality rates as not using seat belts OC. The results suggest that the use of seat belts is associated with higher fatality rates than not using a b OD. The results are inconclusive values, it appears that the fatality rate i for Pa