This topic contains a solution. Click here to go to the answer

Author Question: The variance of the scores: 0, 1, 1, and 2 is A) .25 B) .5 C) .5 D) ... (Read 48 times)

piesebel

  • Hero Member
  • *****
  • Posts: 565
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
Answer to Question 1

B

Answer to Question 2

B



piesebel

  • Hero Member
  • *****
  • Posts: 565

manuelcastillo

  • Sr. Member
  • ****
  • Posts: 304

 

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.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

For a complete list of videos, visit our video library