Author Question: A chi-square test for independence has df = 2. What is the total number of categories (cells in the ... (Read 51 times)

dakota nelson

  • Hero Member
  • *****
  • Posts: 604
A chi-square test for independence has df = 2. What is the total number of categories (cells in the matrix) that were used to classify individuals in the sample?
 
  A) two
  B) three
  C) four
  D) six

Question 2

With  = .05 and df = 8, the critical values for a two-tailed t test are t = 2.306. Assuming all other factors are held constant, if the df value were increased to df = 20, what would happen to the critical values for t?
 
  A) They would increase (move farther from zero).
  B) They would decrease (move closer to zero).
  C) They would stay the same.
  D) There is not enough information to answer.



Dinolord

  • Sr. Member
  • ****
  • Posts: 313
Answer to Question 1

D

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

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.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

For a complete list of videos, visit our video library