Heteroskedasticity refers to the state of systematic changes in the spread of residuals or the error term of the model. The presence of heteroskedasticity leads to violation of the assumption of the ordinary least square.
research methodology, research reliabilityData scientists strictly prefer to test normality and work on normally distributed data because of its benefits.
research methodology, research reliabilityNormality test identifies the nature of the distribution of data of a given variable. Normal distribution of data refers to the closeness of every observation in a dataset to its mean score.
research methodology, research reliability