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 145 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
YES! Correct, THANKS for helping me on my review

Liamb2179

  • Member
  • Posts: 365
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

The vertebrate single-lens eye. The vertebrate single-lens eye.
Muscle fibers consist of single, elongated, multinucleated cells that arise from the fusion Muscle fibers consist of single, elongated, multinucleated cells that arise from the fusion
Laboratory Requisition Information Laboratory Requisition Information
The phases and ionic basis of an action potential. The phases and ionic basis of an action potential.
Population and Settlement Population and Settlement
The following information relates to the Cutting Department of Kittina Corporation for the ... The following information relates to the Cutting Department of Kittina Corporation for the ...
Video: Mechanisms of capillary exchange (transcytosis & bulk flow)

For a complete list of videos, visit our video library