The difference among means of groups is ordinarily tested by ...

[kamilo84]

The difference among means of groups is ordinarily tested by
 
  A) multiple correlations and multiple regressions.
  B) multiple regressions and bivariate predictions.
  C) analysis of variance and t tests.
  D) t tests and bivariate correlations.

Question 2

Using the mean to indicate centrality on a distribution of income scores
  usually results in
 
  a. a false image of poverty
  b. an accurate portrayal of income
  c. a false image of prosperity
  d. income scores never lend themselves to centrality

[chereeb]

Answer to Question 1

C

Answer to Question 2

Here to give you a feedback, your answer was right Awesome

[kamilo84]

Excellent

[nguyenhoanhat]

Thanks for the timely response, appreciate it