« previous next »

Author Question: Sampling error is assumed a. only when the F ratio is calculated b. only when the t ratio is ... (Read 73 times)

craiczarry

  • Hero Member
  • *****
  • Posts: 527
on: Jun 20, 2018
Sampling error is assumed
 
  a. only when the F ratio is calculated
  b. only when the t ratio is calculated
  c. only when the Pearson r is significant
  d. whenever samples are measured

Question 2

A researcher selects a pair of random samples. In Group 1 the scores are 25, 25, 24, 24, 23, 233, 22, 21, 20. In Group 2 the scores are 22, 20, 20, 18, 15, 15, 12, 12, 10.
 
  a. Find the t ratio
  b. Do you reject Ho?
  c. Do the two groups represent a single population?


Ahnyah

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jun 20, 2018
Answer to Question 1

d

Answer to Question 2

a t=4.608


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

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?

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?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Operant conditioning, also known as trial-and-error learning. Operant conditioning, also known as trial-and-error learning.
Mendel's breeding program that produced a 9 : 3 : 3 : 1 ratio Mendel's breeding program that produced a 9 : 3 : 3 : 1 ratio
How the multiple-factor hypothesis accounts for the 1:4:6:4:1 phenotypic ratio How the multiple-factor hypothesis accounts for the 1:4:6:4:1 phenotypic ratio
Generation of the F2 trihybrid phenotypic ratio using the forked-line method Generation of the F2 trihybrid phenotypic ratio using the forked-line method
A company that makes environmental measuring devices has calculated their revenue and costs as ... A company that makes environmental measuring devices has calculated their revenue and costs as ...
Chorionic villus sampling (CVS) Chorionic villus sampling (CVS)
Video: Burn Animation

For a complete list of videos, visit our video library