Statistics
posted by Wanda on .
If a researcher were studying the effects of a teaching method on patient learning outcomes, how would the research question need to be worded to use a ttest to test for statistical differences? What would the null and alternative hypotheses be?

What is the control situation? No teaching ? Another teaching method?
Assume new teaching method = mean2.
Ho: mean1 = mean2
Ha: mean1 < mean2