Use the values given in Exercise 8 for the following:
a. What is F if the treatment effect is doubled but random error stays the same? For purposes of this question, assume that random error falls only in the denominator (which it primarily does).
b. What is F if the treatment effect stays the same but random error is doubled? For purposes of this question, assume that random error falls only in the denominator (which it primarily does).
c. Sketch three normal curves to represent Exercise 8. Below those curves, sketch three normal curves to represent the change described in Exercise 14a. Below those curves, sketch three normal curves to represent the change described in Exercise 14b.