ZuoTi.Pro
Question

A local politician running for reelection claims the mean prison time for car theives is less...

A local politician running for reelection claims the mean prison time for car theives is less than the required 4 yrs. A sample of 80 convicted car theives was randomly selected and the mean length of prison time was found to be 3.5 yrs. with a population standard deviation of 1.25 yrs. alpha=.05, test the politician’s claim
math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
A local politician running for reelection claims the mean prison time for car theives is less...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • A local politician running for reelection claims the mean prison time for car thieves is less...

    A local politician running for reelection claims the mean prison time for car thieves is less than the required 6 yrs. A sample of 80 convicted car thieves was randomly selected and the mean length of prison time was found to be 5.5 yrs. with a standard deviation of 1.25 yrs. alpha=0.05 State the claim mathematically. Is the claim the null or alternative hypothesis? State your hypotheses. Determine the test of significance (t-test or z-test) and justify your choice. State...

  • + S do Холеро A local politician, running for reelection, claims that the mean prison time...

    + S do Холеро A local politician, running for reelection, claims that the mean prison time for car thieves is less mes louho than the required 5 years. A sample of 20 convicted car thieves was randomly selected, and the mean length of prison time was found to be 4 years and 6 months with a standard deviation of 1 year and 3 months. At the 0.05 level of significance, test the politician's claim Assume that the prison time for...

  • A local hardware store claims that the mean waiting time in line is less than 3.5...

    A local hardware store claims that the mean waiting time in line is less than 3.5 minutes. A random sample of 20 customers has a mean of 3.3 minutes with a standard deviation of 0.8 minute. If a = 0.05, test the store's claim. Assumption: ? Parameter: ? Hypothesis: ? Test Statistic: ? Reject- Region: ? Calculated Test Statistic: ? Conclusion: ? P-value: ?

  • A bank claims that the mean waiting time in line is less than 4.1 minutes. A...

    A bank claims that the mean waiting time in line is less than 4.1 minutes. A random sample of 60 customers has a mean of 4 minutes. Assuming a population standard deviation of 0.6 minute, test the bank's claim with an ? = 0.05 level of confidence. ?0 = ___________________________________ ?? = ___________________________________ Test Statistic = __________________________ Alpha level of significance= __________________ Classical Critical Value = ____________________ P-value = _______________________________ ________Conclusion: A) reject ?0 B) fail to reject ?0 ________Interpretation:...

  • (10 pts) In an advertisement, a pizza shop claims that its mean delivery time is less...

    (10 pts) In an advertisement, a pizza shop claims that its mean delivery time is less than 30 minutes. A random sample of 36 delivery imes has a mean of 28.5 minutes and a standard deviation of 3.5 minutes. Is there enough evidence to support the claim at α-.05 ? (a) Set up the null and alternative hypotheses (b) Find the test statistic. (c) Find the rejection region and state your conclusion. (d) What is the P-value for this test?

  • 1) The state of CT claims that the average time in prison is 15 years. A...

    1) The state of CT claims that the average time in prison is 15 years. A random survey of 75 inmates revealed that the average length of time in prison is 16.4 years with a standard deviation of 6.7 years. Conduct a hypothesis to test the state of CT's claim. What type of test should be run? t-test of a mean z-test of a proportion The alternative hypothesis indicates a right-tailed test left-tailed test two-tailed test Calculate the p-value. Keep...

  • 8. A researcher claims that the mean time (in hours) teenagers are on the computes is...

    8. A researcher claims that the mean time (in hours) teenagers are on the computes is 3.5 hours per day. The mean time of 15 randomly selected teenagers are on the computer in a day was 3.15 hours with a standard deviation of 0.46 hours. a) Which test will you apply? Why b) State the Null and Alternative hypothesis. c) Check the claim. Explain your steps.

  • computing z scores A rental car company claims the mean time to rent a car on...

    computing z scores A rental car company claims the mean time to rent a car on their website is 60 seconds with a standard deviation of 30 seconds. A random sample of 36 customers attempted to rent a car on the website. The mean time to rent was 75 seconds. Is this enough evidence to contradict the company's claim?

  • DMV claims that their average wait times are less than 15 minutes. A random sample of...

    DMV claims that their average wait times are less than 15 minutes. A random sample of 10 people had a mean wait time of 13 minutes with a standard deviation of 3.5 minutes. Assuming wait times are normally distributed , test the claim at alpha=0.10 . Hint : One Mean, T-test.

  • A local chess club claims that the length of time to play a game has a...

    A local chess club claims that the length of time to play a game has a standard deviation of less than 11 minutes. Write sentences describing type l and type ll errors for a hypothesis test of this claim. A type I error will occur if the actual standard deviation of the length of time to play a game is hypothesis, A type Il error will occur if the actual standard deviation of the length of time to play a...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT