In a survey of 1000 drivers from Region A, 854 wear a seat belt In a survey of 1000 drivers from Region B, 903 wear a seat belt. At a=0.10, is there evidence to support the claim that the proportion of drivers who wear seat belts in Region Ais less than the proportion of drivers who we seat belts in Region B? Assume that the samples are random and independent. Complete parts (a) through (e) below. (a) Identify the claim and state H, and H 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. O A. The claim is that the proportion of drivers who wear seat belts in Region A is greater than the proportion of drivers who wear seat belts in Region B O B. The claim is that the proportion of drivers who wear seat belts in Region Ais less than the proportion of drivers who wear seat belts in Region B. OC. The claim is that the proportions of drivers who wear seat belts in both regions are equal. OD. The claim is that the proportions of drivers who wear seat belts in both regions add up to 1. State Ho and H, Choose the correct answer below. OC. H Pi SP2 H P, P2 OA H P 2 P2 OB. H: P (Round to two decimal places as needed.) O B. There is one critical value, zo = and one rejection region, z< (Round to two decimal places as needed.) OC. There are two critical values, z, =. and two rejection regions, z< and z> (Use a comma to separate answers as needed. Round to two decimal places as needed.)
In a survey of 1000 drivers from Region A, 854 wear a seat belt In a survey of 1000 drivers from Region B, 903 wear a seat belt. At a=0.10, is there evidence to support the claim that the proportion of drivers who wear seat belts in Region Ais less than the proportion of drivers who we seat belts in Region B? Assume that the samples are random and independent. Complete parts (a) through (e) below. (a) Identify the claim and state H, and H 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. O A. The claim is that the proportion of drivers who wear seat belts in Region A is greater than the proportion of drivers who wear seat belts in Region B O B. The claim is that the proportion of drivers who wear seat belts in Region Ais less than the proportion of drivers who wear seat belts in Region B. OC. The claim is that the proportions of drivers who wear seat belts in both regions are equal. OD. The claim is that the proportions of drivers who wear seat belts in both regions add up to 1. State Ho and H, Choose the correct answer below. OC. H Pi SP2 H P, P2 OA H P 2 P2 OB. H: P (Round to two decimal places as needed.) O B. There is one critical value, zo = and one rejection region, z< (Round to two decimal places as needed.) OC. There are two critical values, z, =. and two rejection regions, z< and z> (Use a comma to separate answers as needed. Round to two decimal places as needed.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:In a survey of 1000 drivers from Region A, 854 wear a seat belt. In a survey of 1000 drivers from Region B, 903 wear a seat belt. At a = 0.10, 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 B? Assume that the samples are random and independent. Complete parts (a) through (e) below.
(a) Identify the claim and state Ho and Ha
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.
O A. The claim is that the proportion of drivers who wear seat belts in Region A is greater than the proportion of drivers who wear seat belts in Region B.
O B. The claim is 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 B.
OC. The claim is that the proportions of drivers who wear seat belts in both regions are equal.
O D. The claim is that the proportions of drivers who wear seat belts in both regions add up to 1.
State H, and Ha. Choose the correct answer below.
O A. Ho: P1 2 P2
O B. Ho: P1 <p2
Ha: P1 2 P2
OC. Ho: P1 sP2
Hạ: P1 <P2
H3: P1 > P2
O E. Ho: P1 > P2
Ha: P1 SP2
O F. Ho: P1 # P2
O D. Ho: P1 = P2
Ha: P1 # P2
Hạ: P1 = P2
(b) Find the critical value(s) and identify the rejection region(s). Select the correct choice below and fill in the answer boxes to complete your choice.
O A. There is one critical value, zo =
and one rejection region, z>
(Round to two decimal places as needed.)
O B. There is one critical value, zn =
and one rejection region, z<
(Round to two decimal places as needed.)
O C. There are two critical values, z, =
and two rejection regions, z<
and z>
(Use a comma to separate answers as needed. Round to two decimal places as needed.)
Transcribed Image Text:(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= 0.10 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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