A. The average SAT score of students is 1110, with a standard deviation ≈ 120. If...

A. The average SAT score of students is 1110, with a standard deviation ≈ 120.

If a sample of n = 25 students is selected, what is the probability that the sample mean would be > 1150? That is, what is p(M>1150)?

B. Which of the following will decrease statistical power? SELECT ALL THAT APPLY.

a smaller sample size

a larger effect size

a larger standard deviation

a larger alpha

Expert Solution

orchestra answered 1 year ago

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