A sample is selected from a population with mu 80 and an ex

A sample is selected from a population with mu = 80 and an experimental treatment is administered to the sample. Assuming some fixed Type error rate, if the sample variance is s^2 = 20, which set of sample characteristics is most likely to result in a statically significant effect (i.e., rejecting H0)? Mean = 84; N = 25 Mean = 84; N = 100 Mean = 88; N = 25 Mean = 88; N = 100 The area of a sampling distribution that warrants rejection of the null hypothesis is known as what?

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