When are we most likely to expect larger differences between ...

[torybrooks]

When are we most likely to expect larger differences between group means?
 
  a. when there is considerable variability within groups
  b. when there is very little variability within groups
  c. when we have large samples
  d. when we have a lot of power

Question 2

A t test is most often used to
 
  a. compare two means.
  b. compare the standard deviations of two samples.
  c. compare many means.
  d. none of the above

[gstein359]

Answer to Question 1

B

Answer to Question 2

A

[torybrooks]

Wow, this really help

[diana chang]

Thanks for the timely response, appreciate it