Biology 2244A/B Lecture Notes - Lecture 2: Georgia State Route 2, Confidence Interval, Test Statistic

• School: Western University
• Department: Biology
• Course: Biology 2244A/B
• Professor: K.Andrew White

Document Summary

Trial outcomes - 2 groups np & nq 5. Ha: p < p0 p > p0 p p0. Ha: p1- p2 < 0 p1- p2 > 0. ( x x)2 se= ( y y)2 n 2 df = n 2. Ha: at least one differs from the rest. Ms (error ) df = (k-1, n-k) ( y1 y2) ( 1 2) t obs= Sepooled = s pooled ( 1 n1 n2) + 1: p-value reject h0, reject h0 if test statistic does not fall in critical region, p-value reject h0. H0: there is no interaction between the two factors. Ha: there is an interaction between the two factors. Ms(error: p-value reject h0. H0: there is no effect from row factor. Ha: there is no effect from row factor: if fail to reject: Sample values come from a population with a distribution that is normal. Sample values come from populations having the same variance 2 (or standard deviation )