A researcher evaluates a treatment effect using a one-tailed hypothesis test wit

Question

A researcher evaluates a treatment effect using a one-tailed hypothesis test with alfa=.05, and the decision is to reject the null hypothesis. If the researcher switched to a two-tailed test using the same sample- what decision would be made? Definitely reject the null hypothesis with either alfa =.05 or with alfa=01 Definitely reject the null hypothesis with alfa=.05 and maybe reject with alfa=.01 C. Might reject the null hypothesis with alfa=.05 but might not Definitely fail to reject the null hypothesis with either alfa =.05 or with alfa=.01

Explanation / Answer

D) is correct. The value of p will increase which will lead to failure of null hypothesis at the same alpha level.

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