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What are assumptions in parametric tests?
All parametric tests assume some certain characteristics about the data
What happens if data breaches/violates the assumptions?
It leads to incorrect conclusions and interpretation of the results
What do the set of assumptions depend on?
The statistical analysis undertaken
What are the common parametric assumptions?
Data is continuous (ratio/interval)
Data to have normal distribution (symmetrical shape)
Data to have homogeneity of variance (spread of data)