Question

(2) A state executive claims that the average cost of tuition at public colleges is $5700. A researcher wishes to test the cl

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


Answer Date: 14/04/2019 To test the hypothesis is that the mean cost of tuition is greater than $5700 at 5% significance leveFrom the standard normal table, the z-critical value for right-tailed at 95% confidence is 1.645. The z-critical value is 1.6

Add a comment
Know the answer?
Add Answer to:
(2) A state executive claims that the average cost of tuition at public colleges is $5700....
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 researcher from a construction firm claims that the average cost of total renovation of a...

    A researcher from a construction firm claims that the average cost of total renovation of a bungalow house is less than $85 (in ten thousand dollars). He selects a random sample of 36 pairs of shoes from a catalog and finds the following costs (in ten thousand dollars) 62 70 75 55 80 55 51 40 80 70 52 96 120 90 75 85 80 60 110 65 82 85 85 45 75 60 90 92 60 95 110 85...

  • A survey claims that the average cost of a hotel room in Tulsa, Oklahoma, is less...

    A survey claims that the average cost of a hotel room in Tulsa, Oklahoma, is less than $49.21. In order to test this claim, a researcher selects a sample of 26 hotel rooms and finds the average cost equal to $47.37 with a sample standard deviation of $6.42. Assume the population random variable is normal. At alpha=.1.

  • 10. A radio manufacturer claims that 65% of teenagers (13-16 years old) have their own head...

    10. A radio manufacturer claims that 65% of teenagers (13-16 years old) have their own head phones. A researcher wishes to test the claim and selects a random sample of 80 teenagers. She finds that 57 have their own head phones. At α-0.05, should the claim be rejected? Construct a corresponding confidence interval for the population parameter.

  • A manufacturer claims that the mean lifetime of its lithium batteries is 1101 hours. A homeowner...

    A manufacturer claims that the mean lifetime of its lithium batteries is 1101 hours. A homeowner selects 25 of these batteries and finds the mean lifetime to be 1081 hours with a standard deviation of 81 hours. Test the manufacturer's claim. Use a = 0.05. OA. p-value = 0.114 > 0.05; do not reject the Ho; there is enough evidence to support the claim. OB. p-value = 0.114 > 0.05; reject the Ho; there is not enough evidence to support...

  • The owner of a football team claims that the average attendance at games is over 561,...

    The owner of a football team claims that the average attendance at games is over 561, and he is therefore justified in moving the team to a city with a larger that a hypothesis test of the claim has been conducted and that the conclusion is failure toC)There is not sufficient evidence to support the claim that the mean attendance is greater than 561. reject the null hypothesis, state the conclusion in nontechnical terms. SELECT ALL APPLICABLE CHOICES A) There...

  • (8 points) In 2015, the average cost of attendance at public 2-year colleges and technical schools...

    (8 points) In 2015, the average cost of attendance at public 2-year colleges and technical schools across the United States was $12,260. A researcher wants to know if the 2-year colleges in Michigan are less expensive. 1. A QQ-plot of the cost of attendance at public 2-year colleges and technical schools is shown below. Based on this plot, is it reasonable to use this data to evaluate the research question? Why or why not? ? becau: ✓ ? The population...

  • 4) (8 points) In 2015, the average cost of attendance at public 2-year colleges and technical...

    4) (8 points) In 2015, the average cost of attendance at public 2-year colleges and technical schools across the United States was $12,260. A researcher wants to know if the 2-year colleges in Michigan are less expensive. 1. A QQ-plot of the cost of attendance at public 2-year colleges and technical schools is shown below. Based on this plot, is it reasonable to use this data to evaluate the research question? Why or why not? The researcher decides to conduct...

  • In 2015, the average cost of attendance at public 2-year colleges and technical schools across the...

    In 2015, the average cost of attendance at public 2-year colleges and technical schools across the United States was $12,260. A researcher wants to know if the 2-year colleges in Michigan are less expensive. 1. A QQ-plot of the cost of attendance at public 2-year colleges and technical schools is shown below. Based on this plot, is it reasonable to use this data to evaluate the research question? Why or why not? ? Yes No  because  ? The population data distribution seems...

  • In 2015, the average cost of attendance at public 2-year colleges and technical schools across the...

    In 2015, the average cost of attendance at public 2-year colleges and technical schools across the United States was $12,260. A researcher wants to know if the 2-year colleges in Michigan are less expensive. 1. A QQ-plot of the cost of attendance at public 2-year colleges and technical schools is shown below. Based on this plot, is it reasonable to use this data to evaluate the research question? Why or why not? ? Yes No  because  ? The population data distribution seems...

  • A manufacturer claims that the mean lifetime of its lithium batteries is less than 1095 hours....

    A manufacturer claims that the mean lifetime of its lithium batteries is less than 1095 hours. A homeowner selects 27 of these batteries and finds the mean lifetime to be 1065 hours with a standard deviation of 76 hours. Test the manufacturer's claim. Use a = 0.02. P-value = 0.112 > 0.02; do not reject H0; There is not enough evidence support the claim that mean is less than 1500. ОА P-value = 0.025 0.02, do not reject HO, There...

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