STATISTICS Statistics Questions Word Count: 250 (1 page) Question 1: ?What is correlation? What is an example of two variables that are likely to be correlated because they are both changing over time? (125 words) Correlation mean how much two elements are most alike…
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 must be conducted. According to Allen (2004), “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…” (pp. 66). ...
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