Test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, and then state the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. Among 2082 passenger cars in a particular region, 224 had only rear license plates. Among 346 commercial trucks, 47 had only rear license plates. A reasonable hypothesis is that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars. Use a 0.01 significance level to test that hypothesis. a. Test the claim using a hypothesis test. b. Test the claim by constructing an appropriate confidence interval. a. Identify the null and alternative hypotheses for this test. Let population 1 correspond to the passenger cars and population 2 correspond to the commercial trucks. Let a success be a vehicle that only has a rear license plate. OA. Ho: P₁ P₂ H₁: P₁ P₂ OB. Ho: P₁ P₂ H₁: P₁ P₂ OC. Ho: P₁ P₂ H₁: P₁ P₂ OD. Ho: P₁ P₂ H₁: P₁ P₂ Identify the test statistic (Type an integer or a decimal. Round to two decimal places as needed.) Identify the P-value. (Type an integer or a decimal. Round to three decimal places as needed.) State the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. Ho. There sufficient evidence to support the claim that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars. b. Identify the confidence interval limits for the appropriate confidence interval. Let population 1 correspond to the passenger cars and population 2 correspond to the commercial trucks. Let a success be a vehicle that only has a rear license plate.

2. A marketing manager for a phone company claims that 55% of children ages 8-12 have their own cell phones. In a random survey of 802 children ages 8-12, 460 of them had phones. Conduct a hypothesis test for the manager's claim. Use a x= 0.05 significance level. a. Write the null and alternative hypothesis b. Find the test statistic (2 decimal places) c. Find the p-value (4 decimal places) d. Decision: reject or fail to reject? Why? e. Conclusion in context of the problem Calculator Command

Test the given claim. Identify the null​ hypothesis, alternative​ hypothesis, test​ statistic, P-value, and then state the conclusion about the null​ hypothesis, as well as the final conclusion that addresses the original claim. Among 2089 passenger cars in a particular​ region, 226 had only rear license plates. Among 322 commercial​ trucks, 49 had only rear license plates. A reasonable hypothesis is that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars. Use a 0.05 significance level to test that hypothesis. b. Test the claim by constructing an appropriate confidence interval.   b. Identify the confidence interval limits for the appropriate confidence interval. Let population 1 correspond to the passenger cars and population 2 correspond to the commercial trucks. Let a success be a vehicle that only has a rear license plate.

Rhino viruses typically cause common colds. In a test of the effectiveness of echinacea, 43 of the 50 subjects treated with echinacea developed rhinovirus infections. In a placebo group, 87 of the 104 subjects developed rhinovirus infections. Use a 0.01 significance level to test the claim that echinacea has an effect on rhinovirus infections. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of subjects treated with echinacea and the second sample to be the sample of subjects treated with a placebo. What are the null and alternative hypotheses for the hypothesis test? O A. Ho: P₁ #P2 H₁: P₁ =P₂ O D. Ho: P₁ ≤P2 H₁: P₁ P2 Identify the test statistic. Z= (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 P-value is the significance level of α = 0.01, so b. Test the claim by constructing an…

To test the fairness of law enforcement in its area, a local citizens’ group wants to know whether women and men are unequally likely to get speeding tickets. Four hundred randomly selected adults were phoned and asked whether or not they had been cited for speeding in the last year. Using the results in the following table and a  level of significance, test the claim of the citizens’ group. Let men be Population 1 and let women be Population 2.(hint - Proportions 2 sample, two tail test)                           Speeding Tickets   Ticketed Not Ticketed Men 21 173 Women 37 169                       Group of answer choices Statistic = -5.03, Accept null hypothesis Statistic = -2.03, Reject null hypothesis Statistic = -3.03, Reject null hypothesis Statistic = -2.03, Accept null hypothesis

Test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, and then state the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. Among 2156 passenger cars in a particular region, 240 had only rear license plates. Among 387 commercial trucks, 55 had only rear license plates. A reasonable hypothesis is that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars. Use a 0.01 significance level to test that hypothesis. a. Test the claim using a hypothesis test. b. Test the claim by constructing an appropriate confidence interval. O D. Ho: P1 = P2 H1: P1 # P2 Identify the test statistic. - 1.75 (Round to two decimal places as needed.) Identify the P-value. 0.040 (Round to three decimal places as needed.) State the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. A. Fail to reject…