ANOVA CNSL 503 QUESTIONS WITH CORRECT ANSWERS A+ ALREADY GRADED NEWEST BRAND 2025

ANOVA CNSL 503 QUESTIONS WITH CORRECT ANSWERS A+ ALREADY GRADED NEWEST BRAND 2025 What is an ANOVA? - CORRECT ANSWER - ANOVA is an analysis of variance between groups (or levels of a factor) or within groups (or error) Wherea s t-tests compare only two sample distributions, ANOVA is capable of comparingkmany. We partition the total variance into how group means differ from the grand mean and how individual observations within groups differ from t heir group's mean Whatkare the three assumptions of ANOVA? - CORRECT ANSWER - 1. independence of observations 2. normality 3. homogeneity of variance What is the null hypothesis? - CORRECT ANSWER -All meanskare equal μ1 = μ2 = μ3 = μ4 Whatkis the Alternative (one way) hypothesis? - CORRECT ANSWER -μ1≠ μ2≠ μ3≠ μ4 (There is at least ONE difference between groups)