HomeworkLib
Question

The average gasoline price of one of the major oil companies has been hovering around $2.20...

The average gasoline price of one of the major oil companies has been hovering around $2.20 per gallon. Because of cost reduction measures, it is announced that there will be a significant reduction in the average price over the next month. In order to test this belief, we wait one month, then randomly select a sample of 36 of the company's gas stations. We find that the average price for the stations in the sample was $2.15. The standard deviation of the prices for the selected gas stations is $.10. Given that the test statistic for this sample is t = –3, determine the p-value.

(NOT USING EXCEL)

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:
The average gasoline price of one of the major oil companies has been hovering around $2.20...
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

  • Assume the average gasoline price of one of the major oil companies has been $3.00 per...

    Assume the average gasoline price of one of the major oil companies has been $3.00 per gallon for quite some time. Because of recent shortages in production of crude oil, it is believed that there has now been a significant INCREASE in the average price. In order to test this belief, we randomly selected a sample of 36 of the company's gas stations and determined that the average price for the stations in the sample was $3.06. Assume that the...

  • The average gasoline price at Chevron was $3.12 per gallon last month. Due to the recent...

    The average gasoline price at Chevron was $3.12 per gallon last month. Due to the recent nation-wide gas price drop, the chief marketing officer of Chevron believes that there has been a significant reduction in the average gas price. In order to test his belief, he randomly selected a sample of 36 of Chevron gas stations and found the average gas price of these stations was $3.06. Assume that the population standard deviation of the population is $0.12, and the...

  • At one point the average price of regular unleaded gasoline was 53.42 per gallon. Assume that...

    At one point the average price of regular unleaded gasoline was 53.42 per gallon. Assume that the standard deviation price per gallon is 50.04 per gallon and use Chebyshev's inequality to answer the following. (a) What percentage of gasoline stations had prices within 3 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 2.5 standard deviations of the mean? What are the gasoline prices that are within 2.5 standard deviations of the mean? (c) What...

  • At one point the average price of regular unleaded gasoline was ​$3.653.65 per gallon. Assume that...

    At one point the average price of regular unleaded gasoline was ​$3.653.65 per gallon. Assume that the standard deviation price per gallon is ​$0.050.05 per gallon and use​Chebyshev's inequality to answer the following. ​(a) What percentage of gasoline stations had prices within 44 standard deviations of the​ mean? ​(b) What percentage of gasoline stations had prices within 2.52.5 standard deviations of the​ mean? What are the gasoline prices that are within 2.52.5 standard deviations of the​ mean? ​(c) What is...

  • %) 32.35x At one point the average price of regular unleaded gasoline was $3.64 per gallon....

    %) 32.35x At one point the average price of regular unleaded gasoline was $3.64 per gallon. Assume that the standard deviation price per gallon is $0.07 per gallon and use Chebyshev's inequality to answer the following (a) What percentage of gasoline stations had prices within 4 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 1.5 standad devations of the mean? What are the gasoline prices that are within 1.5 standard deviations of the mean?...

  • At one point the average price of regular unleaded gasoline was $3.49 per gallon. Assume that...

    At one point the average price of regular unleaded gasoline was $3.49 per gallon. Assume that the standard deviation price per gallon is $0.05 per gallon and use Chebyshev's inequality to answer the following. (a) What percentage of gasoline stations had prices within 4 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 1.5 standard deviations of the mean? What are the gasoline prices that are within 1.5 standard deviations of the mean? (c) What...

  • 235x Question Help * At one point the average price of regular unleaded gasoline was $3.47...

    235x Question Help * At one point the average price of regular unleaded gasoline was $3.47 per gallon. Assume that the standard deviation price per gallon is $0.07 per gallon and use Chebyshevs inequality to answer thefollowing. (a) What percentage of gasoline stations had prices within 3 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 1.5 standard deviations of the mean? What are the gasoline prices that are within 1.5 standard deviations of the...

  • 3.2.35x At one point the average price of regular unleaded gasoline was $3.47 per gallon. Assume...

    3.2.35x At one point the average price of regular unleaded gasoline was $3.47 per gallon. Assume that the standard deviation price per gallon is S0.07 per gallon and use Chebyshev's inequality to answer the following (a) What percentage of gasoline stations had prices within 3 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 1.5 standard deviations of the mean? What are the gasoline prices that are within 1.5 standard deviations of the mean? (c)...

  • 3.2.35x E Question Help At one point the average price of regular unleaded gasoline was $3.38...

    3.2.35x E Question Help At one point the average price of regular unleaded gasoline was $3.38 per gallon. Assume that the standard deviation price per gallon is $0.04 per gallon and use Chebyshevs inequality to answer the following. (a) What percentage of gasoline stations had prices within 3 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 2.5 standard deviations of the mean? What are the gasoline prices that are within 2.5 standard deviations of...

  • At one point the average price of regular unleaded gasoline was $3.45 per gallon. Assume that...

    At one point the average price of regular unleaded gasoline was $3.45 per gallon. Assume that the standard deviation price per gallon is $0.06 per gallon and use Chebyshev's inequality to answer the following. (a) What percentage of gasoline stations had prices within 2 standard deviations of the mean? (b) What percentage of gasoline stations had prices within 2.5 standard deviations of the mean? What are the gasoline prices that are within 2.5 standard deviations of the mean? (c) What...

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