What Effect Will Using a One-Tailed Test Over a Two-Tailed

question 44

Multiple Choice

What effect will using a one-tailed test over a two-tailed test have on power (presuming the true population difference is in the expected direction) ?

• A)it will increase power
• B)it will have no effect on power
• C)it will decrease power
• D)power cannot be calculated if a one-tailed test is used

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