« previous next »

Author Question: A chi-square test for independence has df = 2. What is the total number of categories (cells in the ... (Read 53 times)

dakota nelson

  • Hero Member
  • *****
  • Posts: 604
on: Jun 20, 2018
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
Reply #1 on: Jun 20, 2018
Answer to Question 1

D

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Brain Cells Brain Cells
Normal red blood cells. Normal red blood cells.
Using an ice bath to test the fuel temperature sensor. Using an ice bath to test the fuel temperature sensor.
Total Fertility Rate in Japan: Actual versus Forecast Total Fertility Rate in Japan: Actual versus Forecast
Number Facts Number Facts
Meiosis is used to make sperm and egg cells. A shows a simplified version and B shows a detailed ver Meiosis is used to make sperm and egg cells. A shows a simplified version and B shows a detailed ver
Video: Energy inputs and release in glycolysis Animation

For a complete list of videos, visit our video library