This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The average price of homes sold in the U.S. in 2012 was 240,000 . A sample of 144 homes sold in ... (Read 77 times)

Chelseaamend

  • Hero Member
  • *****
  • Posts: 545
on: Jun 24, 2018
The average price of homes sold in the U.S. in 2012 was 240,000 . A sample of 144 homes sold in Chattanooga in 2012 showed an average price of 246,000 . It is known that the standard deviation of the population () is 36,000 . We are interested in determining whether or not the average price of homes sold in Chattanooga is significantly more than the national average.
 a. State the null and alternative hypotheses to be tested.
  b. Compute the test statistic.
  c. The null hypothesis is to be tested at the 5 level of significance. Determine the critical value(s) for this test.
  d. What do you conclude?

Question 2

When a person knowledgeable on the subject of the study selects units that he or she feels are most representative of the population, the approach is called
 a. stratified sampling.
 b. convenience sampling.
  c. judgment sampling.
 d. systematic sampling.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ghepp

  • Sr. Member
  • ****
  • Posts: 361
Reply #1 on: Jun 24, 2018
Answer to Question 1

a. H0:   240,000
Ha:  > 240,000
b. Test statistic z = 2
c. z.05 = 1.645
d. Reject H0 and conclude that the average price in Chattanooga is higher than the national average.

Answer to Question 2

c


Chelseaamend

  • Member
  • Posts: 545
Reply 2 on: Jun 24, 2018
Gracias!

LegendaryAnswers

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

The WISC-IV: Sample Items The WISC-IV: Sample Items
Sample Program for Changing Daily Caloric Intake Sample Program for Changing Daily Caloric Intake
Sample Checklist of Opening and Closing Duties Sample Checklist of Opening and Closing Duties
A medical assistant holds a specimen container to receive a biopsy sample. A medical assistant holds a specimen container to receive a biopsy sample.
How to find the average value of a function How to find the average value of a function
A 230.0-mL sample of a 0.275 M solution is left on a hot plate overnight; the following morning ... A 230.0-mL sample of a 0.275 M solution is left on a hot plate overnight; the following morning ...
Video: Multiple Sclerosis Animation

For a complete list of videos, visit our video library