MARK 302 Chapter Notes - Chapter 14: Statistical Hypothesis Testing, Squared Deviations From The Mean, Regression Analysis
30 Oct 2016
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Bivariate technique - statistical method of analyzing relationship between two variables. Multivariate technique - statistical method of analyzing relationship using more than two variables. Chi-square ( 2 test of independence - statistical test to determine whether or not two nominal variables are unrelated (independent) to each other. H 0 : the two variables are independent. H a : the two variables are not independent. Appropriate to test for relation between two nominal variables (categories) Not appropriate when variables are interval or ratio, unless data converted to categories. When relationship between two variables, analysis is called simple, or bivariate, correlation analysis - degree to which changes in one variable are associated with changes in another. Pearson correlation - correlation analysis technique for use with interval/ratio data. Can be used to test for relation between two+ variables and also to understand direction and strength of relationship. Pearson correlation coe cient ( r ) describes of association between 2 variables.
