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

Author Question: If we have the possibility of different numbers of subjects in each of two groups, we will maximize ... (Read 54 times)

dakota nelson

  • Hero Member
  • *****
  • Posts: 604
If we have the possibility of different numbers of subjects in each of two groups, we will maximize our power if
 
  a. we put most of the subjects in the group we care most about.
  b. we put most of the subjects in the group we care least about.
  c. we equalize the number of subjects in the two groups.
  d. it doesn't make any difference so long as we maximize the total number of subjects overall.

Question 2

If we use the standard approach to solve for the necessary sample size so that we have power = .75 in a two-sample t test, the value of N that we will obtain from the tables is
 
  a. the number of subjects we will need in each group.
  b. the number of subjects we will need overall.
  c. the number of groups we will need to run.
  d. the number of subjects that we actually have available.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Natalie4ever

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

C

Answer to Question 2

A





 

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

For a complete list of videos, visit our video library