Unformatted text preview: there was no effect, if the null hypothesis is true. o Directional vs. Nondirectional hypotheses o Directional focuses on specific direction o Nondirectional does notUse two tailed test regardless of type of hypothesis o For 5% alpha level, this means using cutoffs of /+ 1.96 o Use 2 tailed because it is more conservative and you can interpret a significant result in either direction. o...
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 Spring '08
 Pipitone
 Null hypothesis, Statistical power, probability Null Hypothesis, trick coin Hypothesis, coin Research Hypothesis

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