Question

A consumer advocacy group is doing a large study on car rental practices. Among other things, the consumer group would like tWhat are the null hypothesis (H) and the alternative hypothesis (H,) that should be used for the test? Ho: u is? ? u is? ? InWhat are the null hypothesis (H) and the alternative hypothesis (H,) that should be used for the test? ? ? Ho: ui v ? less thWhat are the null hypothesis (HQ) and the alternative hypothesis (H,) that should be used for the test? Ho: u is? H:u is? V?What are the null hypothesis (H) and the alternative hypothesis (H,) that should be used for the test? ? Ho: u is? Н. u is? .What are the null hypothesis (H) and the alternative hypothesis (H,) that should be used for the test? ? Ho: u is? H u is? ..

0 0
Add a comment Improve this question Transcribed image text
Answer #1

Ho: \mu is equal to 2800

H1: \mu is less than 2800

Accept/reject Ho True Ho False
Reject Ho Type I error correct
Accept Ho correct Type II error

Type I error is rejecting the Null hypothesis that \mu is equal to 2800 , when in fact, \mu is equal to 2800.

Suppose the group decides not to reject the null hypothesis. what sort of error might it be making ? - Type II error

Add a comment
Know the answer?
Add Answer to:
A consumer advocacy group is doing a large study on car rental practices. Among other things,...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

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 consumer advocacy group is doing a large study on car rental practices. Among other things,...

    A consumer advocacy group is doing a large study on car rental practices. Among other things, the consumer group would like to do a statistical test regarding the mean monthly mileage, u, of cars rented in the U.S. this year. The consumer group has reason to believe that the mean monthly mileage of cars rented in the U.S. this year is less than last year's mean, which was 2800 miles. The group plans to do a statistical test regarding the...

  • Problem Page A consumer advocacy group is doing a large study on car rental practices. Among...

    Problem Page A consumer advocacy group is doing a large study on car rental practices. Among other things, the consumer group would like to do a statistical test regarding the mean monthly mileage, μ, of cars rented in the U.S. this year. The consumer group has reason to believe that the mean monthly mileage of cars rented in the U.S. this year is greater than last year's mean, which was 2850 miles.The group plans to do a statistical test regarding...

  • A psychologist is studying the self image of smokers, as measured by the self-image (SI) score...

    A psychologist is studying the self image of smokers, as measured by the self-image (SI) score from a personality inventory. She would like to examine the mean SI score, u, for the population of all smokers. Previously published studies have indicated that the mean SI score for the population of all smokers is 85 and that the standard deviation is 15, but the psychologist believes that the value for the mean has decreased. She plans to perform a statistical test....

  • A consumer advocacy group is doing a large study on car rental practices. Among other things,...

    A consumer advocacy group is doing a large study on car rental practices. Among other things, the consumer group would like to do a statistical test regarding the mean monthly mileage, H, of cars rented in the US, this year. The consumer group has reason to believe that the mean monthly mileage of cars rented in the U.S. this year is less than last year's mean, which was 2750 miles. The group chooses a random sample of 75 cars rented...

  • A coin-operated coffee machine made by BIG Corporation was designed to discharge a mean of 7.2...

    A coin-operated coffee machine made by BIG Corporation was designed to discharge a mean of 7.2 ounces of coffee per cup. If it dispenses more than that on average, the corporation may lose money, and if it dispenses less, the customers may complain. Believing that the mean amount of coffee dispensed by the machine, H, is less than 7.2 ounces, BIG plans to do a statistical test of the claim that the machine is working as designed. Technicians gather a...

  • A researcher studying stress is interested in the blood pressure measurements of chief executive officers (CEOS)...

    A researcher studying stress is interested in the blood pressure measurements of chief executive officers (CEOS) of major corporations. He believes that the mean systolic blood pressure, , of CEOs of major corporations is more than 136 mm Hg, which is the value reported in a possibly outdated journal artide. He plans to perform a statistical test. He measures the systolic blood pressures of a random sample of CEOs of major corporations and finds the mean of the sample to...

  • A coin-operated coffee machine made by BIG Corporation was designed to discharge a mean of 7.1...

    A coin-operated coffee machine made by BIG Corporation was designed to discharge a mean of 7.1 ounces of coffee per cup. If it dispenses more than that on average, the corporation may lose money, and if it dispenses less, the customers may complain. Believing that the mean amount of coffee dispensed by the machine, , is different from 7.1 ounces, BIG plans to do a statistical test of the claim that the machine is working as designed. Technicians gather a...

  • A scientist has read that the mean birth weight, H, of bables bom at full term...

    A scientist has read that the mean birth weight, H, of bables bom at full term is 7.3 pounds. The scientist, belleving that he is different from this value, plans to perform a statistical test. She selects a random sample of birth weights of babies bom at full term and finds the mean of the sample to be 7.6 pounds and the standard deviation to be 1.5 pounds. Based on this information, answer the questions below. What are the nut...

  • One personality test available on the World Wide Web has a subsection designed to assess the...

    One personality test available on the World Wide Web has a subsection designed to assess the "honesty" of the test-taker. After taking the test and seeing your score for this subsection, you're interested in the mean score, H, among the general population on this subsection. The website reports that his 148, but you believe that ji is greater than 148. You decide to do a statistical test. You choose a random sample of people and have them take the personality...

  • A union of restaurant and foodservice workers would like to estimate this year's mean hourly wage,...

    A union of restaurant and foodservice workers would like to estimate this year's mean hourly wage, u, of foodservice workers in the U.S. Last year's mean hourly wage was $8.08, and there is reason to believe that this year's value is greater than last year's. The union decides to do a statistical test to see if the value has indeed increased. The union chooses a random sample of this year's wages, computes the mean of the sample to be $8.45,...

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