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In a survey of 1000 drivers from Region A, 862 wear a seat belt. In a survey of 1000 drivers from Region B, 919 wear
In a survey of 1000 drivers from Region A, 862 wear a seat belt. In a survey of 1000 drivers from Region B, 919 wear a seat belt At or = 0.05, is there evidence to support the claim that the proportion of drivers who wear seat belts in Region A is less than the proportion of drivers who wear seat belts in Region 5? Assume that the samples are random and independent. Complete parts (a) through (e) below (a) Identify the claim and state H0 and Hal Identify the claim. Let population 1 be drivers from Region A and let population 2 be drivers from Region B. Choose the correct answer below. 0 A. The claim is that the proportions of drivers who wear seat belts in both regions add up to 1 O B. The claim is that the proportion 01 drivers who wear seat belts in Region A is less than the proportion of drivers who wear seat belts in Region B. O C. The claim Is that the proportion ot drivers who wear seat belts In Region A Is greater than the proportion of drivers who wear seat belts In Region B. O D. The claim is that the proportions of drivers who wear seat belts in both regions are equalt State H'7 and \"r Choose the correct answer below. OA. H02p1p2 OF. H0:p1p2 Hazp1spZ Ha:p1=P2 (b) Find the critical value(s) and identify the rejection region(s). Select the correct choice below and till in the answer boxes to complete your choice. O A- There is one critical value. 20 = . and one rejection region. z (Use a comma to separate answers as needed. Round to two decimal places as needed) O C- There is one critical value, 20 = , and one rejection region, 2 > (Round to two decimal places as needed.) (c) Find the standardized test statistic. z. z = (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis Since 2 1 in the rejection region(s). l: H0. (c) Find the standardized test statistic, z. z= (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis. Since z in the rejection region(s), Ho. (e) Interpret the decision in the context of the original claim. There enough evidence at the a = 0.05 level of significance to support the claim that the proportion of drivers who wear seat belts in Region A is the proportion of drivers who wear seat belts in Region B
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