This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The variance of the scores: 0, 1, 1, and 2 is A) .25 B) .5 C) .5 D) ... (Read 20 times)

piesebel

  • Hero Member
  • *****
  • Posts: 565
on: Jun 20, 2018
The variance of the scores: 0, 1, 1, and 2 is
 
  A) .25
  B) .5
  C) .5
  D) 1

Question 2

The comparison distribution for a t test for independent means is a t distribution instead of a normal curve because
 
  A) tables are not available for the normal curve.
  B) the population variance is estimated.
  C) Z distributions were not used at the time the t test for independent means was invented.
  D) there are more degrees of freedom for two samples than for one.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

manuelcastillo

  • Sr. Member
  • ****
  • Posts: 304
Reply #1 on: Jun 20, 2018
Answer to Question 1

B

Answer to Question 2

B


piesebel

  • Hero Member
  • *****
  • Posts: 565
Reply #2 on: Jun 20, 2018
Thank you!


manuelcastillo

  • Sr. Member
  • ****
  • Posts: 304
Reply #3 on: Jun 20, 2018
Happy to help


« previous next »
 

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Results from sequential study of two cohorts tested at three ages and at three different points in t Results from sequential study of two cohorts tested at three ages and at three different points in t
On March 25, 1911, as scores of young factory girls leaped to their deaths from the eighth, ninth, a On March 25, 1911, as scores of young factory girls leaped to their deaths from the eighth, ninth, a
Young adults with low levels of parental support report significantly better scores on measures of ... Young adults with low levels of parental support report significantly better scores on measures of ...
The upper panel shows that scores of four diverse samples of boys on a moral reasoning test show a ... The upper panel shows that scores of four diverse samples of boys on a moral reasoning test show a ...
Student Test Scores versus GDP per Capita Student Test Scores versus GDP per Capita
IQ scores form what mathematicians call a normal distribution "bell curve" IQ scores form what mathematicians call a normal distribution "bell curve"
Video: Multiple Sclerosis Animation

For a complete list of videos, visit our video library