We are planning an experiment comparing three fertilizers. We will haveExercise 7.2 six experimental units per fertilizer and wi
ll do our test at the 5% level. One of the fertilizers is the standard and the other two are new; the standard fertilizer has an average yield of 10, and we would like to be able to detect the situation when the new fertilizers have average yield 11 each. We expect the error variance to be about 4. What sample size would we need if we want power .9
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Hope this helps! the answer is option (A). if you still don’t understand after looking at my solution feel free to clarify ya
