Two Statistical Methods Essay Example | Topics and Well Written Essays - 500 words

Two Statistical Methods - Essay ExampleThis distribution is a theoretical method use normally to have the goodness of fit of an observed statistic to a theoretical model and the degrees of freedom that it is calculated to. The chi-square is used to test both of these parameters. Most oftentimes this is used in specifically to address the issues relating to proportion of population. Two chi-square tests are comfortably used one, test for goodness of fit and two, test for independence2.Analysis of fluctuation provides the methodology to analyses a dependent variable and the effect of other interval independent variables on the values of the dependent variable. ANOVA (Analysis of Variance) may be unidirectional ANOVA when the effect of one independent variable is measured. However, effect of multiple interval independent variables can be measured. This helps in substantiating the main effects and the interaction effects3.Main effects bring out the direct variation in the dependent v ariable due to every single independent variable. Whereas, the interact effect brings out the have effect of the independent variables on the dependent variable. This is normally analyzed in various combinations.