PSYC 1010 Study Guide - Midterm Guide: Null Hypothesis

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Use one tailed tests when dealing with power. Determine the characteristics of the comparison distribution: m2 = the general population mean, m2 = 2. N: n= sample size, = the sd of the general population. M2 = above calculation (sd of the sample) Mcrit = critical (cutoff) mean, same as mupper. M1 = above calculation (sd of the sample) Look up the zupper score in appendix a for the % mean to z. Power = 50 the % mean to z. Articulate the research and null hypothesis (h1: d > 0 and h0: d < 0 or vice versa) Tcrit comes from appendix b based on 1 tailed vs. 2 tailed test; alpha 0. 01 vs. 0. 05 and the degrees of freedom (n-1) Articulate the research and null hypothesis (h1: 1 > 2 and h0: 1 < 2 or vice versa) Complete the table for both sample 1 and sample 2 x m x-m (x-m)2.