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

Author Question: When estimating the population mean on the basis of the information contained in a single sample, ... (Read 133 times)

moongchi

  • Hero Member
  • *****
  • Posts: 516
on: Jun 20, 2018
When estimating the population mean on the basis of the information contained in a single sample, one must at least know
 
  a. the estimated standard error of the mean and the mean of the sample
  b. the z score for each raw score
  c. the standard deviation of the underlying distribution of individual scores
  d. the interdecile range

Question 2

For the majority of the items in any given test, the difficulty index
  should be kept at approximately
 
  a. .99
  b. .50
  c. .01
  d. none of these, since item difficulty is not a quantifiable value.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

SVictor

  • Sr. Member
  • ****
  • Posts: 365
Reply #1 on: Jun 20, 2018
Answer to Question 1

a

Answer to Question 2

b


moongchi

  • Member
  • Posts: 516
Reply 2 on: Jun 20, 2018
Excellent

bassamabas

  • Member
  • Posts: 294
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Mononucleosis is caused by the Epstein–Barr virus. Symptoms of the infectious disease are swollen pa Mononucleosis is caused by the Epstein–Barr virus. Symptoms of the infectious disease are swollen pa
Discharge summary information Discharge summary information
Sample Medicare identification card. Sample Medicare identification card.
Sample client goals from the Wellness Massage Pyramid. Sample client goals from the Wellness Massage Pyramid.
The five skills of the element Collection of Information The five skills of the element Collection of Information
Sample lod score curves Sample lod score curves
Video: DNA Replication

For a complete list of videos, visit our video library