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)

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

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
0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
in a survey if 460 drivers from the south, 402 wear a seat belt. in a...
in a survey if 460 drivers from the south, 402 wear a seat belt. in a survey of 370 driver from the northeast, 275 wear a seat belt. at a =0.06 can you support the claim that the proportion of drivers who wear seat belts is greater in the south than in the northeast? Assume the random samples are independent l. complete parts a) through e) identify the claim and state Ho and Ha the population of the proportion of...
In 1997, a survey of 880 U.S. households showed that 149 of them used email. Use...
In 1997, a survey of 880 U.S. households showed that 149 of them used email. Use a 0.05 significance level to test the cl aim that more than 14% of U.S. households used email in 1997. H0 :p____ 0.14 For Q17(circle one: equal to, less than, greater than, not equal to) H1: p___ 0.14 For Q18 (circle one: equal to, less than, greater than, not equal to) Test Statistic z =__________ Q19 (ROUND TO 2 DECIMAL PLACES) P-value: p =_____________...
The proportion of drivers who use seat belts depends factors such as age (young people are...
The proportion of drivers who use seat belts depends factors such as age (young people are more likely to go unbelted) and sex (women are more likely to use belts). It also depends on local law. In New York City, police can stop a driver who is not belted. In Boston at the time of the survey, police could cite a driver for not wearing a seat belt only if the driver had been stopped for some other violation. Here...
In a study of 780 randomly selected medical malpractice​ lawsuits, it was found that 516 of...
In a study of 780 randomly selected medical malpractice​ lawsuits, it was found that 516 of them were dropped or dismissed. Use a 0.01 significance level to test the claim that most medical malpractice lawsuits are dropped or dismissed. Which of the following is the hypothesis test to be​ conducted? A. H0: p=0.5 H1: p>0.5 B. H0: p<0.5 H1: p=0.5 C. H0: p≠0.5 H1: p=0.5 D. H0: p=0.5 H1: p<0.5 E. H0: p=0.5 H1: p≠0.5 F. H0: p>0.5 H1 :...
Results on seat belt usage from the 2003 Youth Risk Behavior Survey were published in a...
Results on seat belt usage from the 2003 Youth Risk Behavior Survey were published in a USA Snapshot on January 13, 2005. The following table outlines the results from the high school students who were surveyed in the state of Nebraska. They were asked whether or not they rarely or never wear seat belts when riding in someone else's car. Using α = .05, does this sample present sufficient evidence to reject the hypothesis that gender is independent of seat...
When people smoke, the nicotine they absorb is converted to cotinine, which can be measured.A random...
When people smoke, the nicotine they absorb is converted to cotinine, which can be measured.A random sample of 40 smokers has a mean cotinine level of 172.5 ng/ml with a sample standard deviation of 119.5 ng/ml. Use a 0.05 significance level to test the claim that the mean cotinine level of smokers is equal to 200ng/ml. H0: μ___200 For Q23(circle one: equal to, less than , greater than, not equal to) H1: μ___200 For Q24 (circle one:equal to, less than,...
.Results on seat belt usage from the 2003 Youth Risk Behavior Survey were published in a...
.Results on seat belt usage from the 2003 Youth Risk Behavior Survey were published in a USA Snapshot on January 13, 2005. The following table outlines the results from the high school students who were surveyed in the state of Nebraska. They were asked whether or not they rarely or never wear seat belts when riding in someone else's car. Using α = .05, does this sample present sufficient evidence to reject the hypothesis that gender is independent of seat...
Data: A randomly selected group of 35 adult American men (subscript M) was asked if they...
Data: A randomly selected group of 35 adult American men (subscript M) was asked if they owned a handgun. 20 said yes. A randomly selected group of 40 adult American women (subscript W) was asked if they owned handgun. 21 said yes. Test the claim that the proportion of adult men who own handguns is the same as the proportion of adult women who own handguns. Use α = .05 . Question 7: Express the claim in symbolic form. Group...
A market researcher for an automobile company suspects differences in preferred color between male and female...
A market researcher for an automobile company suspects differences in preferred color between male and female buyers. Advertisements targeted to different groups should take such differences into account, if they exist. The researcher examines the most recent sales information of a particular car that comes in three colors. Use Table 3. Gender of Automobile Buyer   Color Male Female   Silver 487 279   Black 550 288   Red 481 373 a. Choose the competing hypotheses to determine whether color preference depends on gender....
5. A sample of 50 impossible whoppersandwiches have a mean fat content of 37.6g and standard...
5. A sample of 50 impossible whoppersandwiches have a mean fat content of 37.6g and standard deviation of 4.9g . A sample of 58 regular whopper sandwiches have a mean fat content of 39.3g and standard deviation of 2.7g. Use a 0.05 significance level to test the claim that the mean fat content for the impossible whopper is less than the mean fat content for the regular whopper. (Assume that the two samples are independent simple random samples selected from...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT