Hypothesis Tests for Means. The context “Statistical significance” Hypothesis tests and confidence intervals The steps Hypothesis Test statistic Distribution Alpha, and the rejection region Result p-Values One-sided vs. two-sided tests Hypothesis tests for proportions.
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Rejection region consists of two parts, each with probability /2.
- z*/2(Standard normal case)
Rejection region probability , all in one tail.
number of tails
= - 2.898