For a hypothesis test evaluating the effect of a treatment on a ...

[jlmhmf]

For a hypothesis test evaluating the effect of a treatment on a population mean, what basic assumption is made concerning the treatment effect?
 
  a. If there is a treatment effect, it will increase the scores.
  b. If there is a treatment effect, it will decrease the scores.
  c. If there is a treatment effect, it will add (or subtract) a constant to each score.
  d. If there is a treatment effect, it will multiply (or divide) each score by a constant.

Question 2

What is measured by the denominator of the z-score test statistic?
 
  a. A likely distance between M and  that would be expected if H0 was true
  b. The actual distance between M and
  c. The position of the sample mean relative to the critical region
  d. Whether or not there is a significant difference between M and

[akudia]

Answer to Question 1

C

Answer to Question 2

A

[jlmhmf]

Thanks for the timely response, appreciate it

[bigcheese9]

Great answer, keep it coming