Question

Among 2200 randomly selected adult male passengers 1884 wear seat belts. Among 2280 randomly selected adult...

Among 2200 randomly selected adult male passengers 1884 wear seat belts. Among 2280 randomly selected adult female passengers 1999 wear seat belts. Use a 0.05 significance level to test the claim that the rate of male passengers who wear seat belts is lower than the rate of female passengers who wear seat belts.

H0: p1____p2 For Q35 (circle one: equal to, less than, greater than, not equal to)

H1: p1____ p2 For Q36 (circle one: equal to, less than, greater than, not equal to)

Test Statistic z =__________ Q37 (ROUND TO 2 DECIMAL PLACES)

P-value: p =_____________ Q38 (ROUND TO 4 DECIMAL PLACES)

Decision:________________________ Q39 (circle one: Reject H0, Fail to Reject H0)

Conclusion:______________________________________________________________ Q40 Circle one for the conclusion:

There is sufficient evidence to support the claim.

OR

There is not sufficient evidence to support the claim.

Construct an appropriate confidence interval ( ______________Q41, _______________ Q42) (ROUND TO 3 DECIMAL PLACES)

Homework Answers

Answer #2

H0: p1 <p2

H1: p1>p2

the critical value for a right-tailed test is z_c = 1.64.

Test Statistic z

Since it is observed that , then  the null hypothesis is not rejected.

The p-value is since 0.9777>0.05 the null hypothesis is not rejected

There is sufficient evidence to support the claim.

answered by: anonymous
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