The p-value is the area to the right or left of the test statistic. If it is a two tail test, then look up the probability in one tail and double it.
If the test statistic is in the critical region, then the p-value will be less than the level of significance. It does not matter whether it is a left tail, right tail, or two tail test. This rule always holds.
May 5th, 2015
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