Steps for Hypothesis Testing: State the null and research hypotheses, State the level of significance, alpha (α), Select a Sampling Distribution and State the test statistic, State the rejection region (critical test statistic), Calculate the research test statistic and see if it falls in the rejection region, State your conclusion in terms of the problem, Two - tail test : Significantly Different , Different ,  = , ≠ , One-tailed Test : Significantly Higher , Significantly Below , <, > , T-statistic : If sample standard deviation is known, , Degrees of freedom = n - 1 , Z-statistic : If population standard deviation is known , ,

SI Closing 10.30.20

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