one-and two-tailed hypothesis tests
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the mean of the sample will be greater than the mean of the general population
one-tailed hypothesis
the mean of the sample will be different or unequal to the mean of the general population
two-tailed hypothesis
one-tailed hypothesis
directional hypothesis an alternative hypothesis in which the researcher predicts the direction of the expected difference between the groups
two-tailed hypothesis
directional hypothesis an alternative hypothesis in which the researcher predicts that the groups being compared differ but does not predict the direction of the difference
