When comparing more than two treatment means, should you use an ...

[DelorasTo]

When comparing more than two treatment means, should you use an analysis of variance rather than using several t tests, and if so, why?
 
  A) Yes. Using several t tests increases the risk of a Type I error.
  B) Yes. Using several t tests increases the risk of a Type II error.
  C) Yes. The analysis of variance is more likely to detect a treatment effect.
  D) No. There is no advantage to using an analysis of variance rather than several t tests.

Question 2

A population has sum of squared deviations, SS = 100 and variance, s2 = 4. What is the value of S(X - m) for the population?
 
  A) 0
  B) 25
  C) 100
  D) 400

[shaquita]

Answer to Question 1

A

Answer to Question 2

A

[DelorasTo]

Excellent

[Liddy]

Thanks for the timely response, appreciate it