Discussion Questions WK Essay Example | Topics and Well Written Essays - 250 words

Discussion Questions WK - Essay Example If we were to measure over a specific period of time, we would see that these two variables could be measured in the environment and to have sustained about an equal amount of pollution over time, considering that the amount of pollution to each variable would be constant. These variables would then be said to be correlational. In that sense, one sees that these variables are good examples. Question 2: ?If a researcher were studying the effects of a teaching method on patient learning outcomes, how must he or she word the research question (different from the hypothesis) to use a t-test to test for statistical differences? What type of data must he or she collect ( interval, ratio, ordinal, nominal)? Why? *Hint: An example of a research question is: Will drug B do a better job of curing acne then drug A? (250 words) In order to do any kind of experiment, one must have a control subject. In order to keep this particular study viable for the control part of the experiment, a t-test mus t be conducted. According to Allen (2004), â€Å"Under a set of assumptions that are usually referred to as the Gauss-Markov conditions, the t test can be used to test the significance of a regression†¦Ã¢â‚¬  (pp. 66).