This topic contains a solution. Click here to go to the answer

Author Question: Carter Motor Company claims that its new sedan, the Libra, will average better than 28 miles per ... (Read 144 times)

azncindy619

  • Hero Member
  • *****
  • Posts: 562
Carter Motor Company claims that its new sedan, the Libra, will average better than 28 miles per gallon in the city. Identify the type I error for the test.
 
  A) The error of failing to reject the claim that the mean is at most 28 miles per gallon when it is actually greater than 28 miles per gallon.
  B) The error of rejecting the claim that the mean is at most 28 miles per gallon when it really is at most 28 miles per gallon.
  C) The error of rejecting the claim that the true proportion is more than 28 miles per gallon when it really is more than 28 miles per gallon.

Question 2

The principal of a middle school claims that test scores of the seventh-graders at his school vary less than the test scores of the seventh-graders at a neighboring school,
 
  which have variation described by  = 14.7. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is to reject the null hypothesis, state the conclusion in nontechnical terms.
  A) There is not sufficient evidence to support the claim that the standard deviation is greater than 14.7.
  B) There is sufficient evidence to support the claim that the standard deviation is less than 14.7.
  C) There is not sufficient evidence to support the claim that the standard deviation is less than 14.7.
  D) There is sufficient evidence to support the claim that the standard deviation is greater than 14.7.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Heffejeff

  • Sr. Member
  • ****
  • Posts: 336
Answer to Question 1

B

Answer to Question 2

B





 

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

For a complete list of videos, visit our video library