Author Question: What is true about the chi-square test of independence? a. Chi-square test of independence ... (Read 122 times)

jeatrice

  • Hero Member
  • *****
  • Posts: 543
What is true about the chi-square test of independence?
 
  a. Chi-square test of independence results are important calculations in most studies.
  b. In a relatively small sample size, the chi-square test of independence can reduce the chance of a Type II error.
  c. The chi-square test of independence is a powerful test used to examine differences in studies with two subjects.
  d. The chi-square test of independence is used to determine whether two variables are related or independent.

Question 2

A researcher correlates self-confidence measures with obesity rates and determines an r value of 0.8. What can the reviewer conclude when evaluating this research?
 
  a. There is a 36 chance that variation in one score is the result of variation in the other score
  b. There is a 64 chance that variation in one score is the result of variation in the other score
  c. There is a 64 chance that variation in one score is the result of variation in something other than the other score
  d. There is a weak correlation between these two variables



Hikerman221

  • Sr. Member
  • ****
  • Posts: 346
Answer to Question 1

ANS: D

Answer to Question 2

ANS: B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

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?

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?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

For a complete list of videos, visit our video library