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Analysis of variance An ANOVA test is used to compare means between more than two groups. One-way ANOVA uses one independent variable, and two-way ANOVA uses two independent variables.(two factors that are being tested simultaneously) Two main aim of ANOVA…
Assumption of Z-test samples are randomly selected from the population Population is normally distributed population variance is known Assumption of T-test samples are randomly selected from the population population is normally distributed populations variance is unknown sample data are continuous…
Validity of a experiments First we consider the validity of the experiment the are three main validates. statistical validity, internal validity, and external validity In statistical validity three main hypothesis are made – normality, Homogeneity of the variance, independent of…