Non-Probability Sampling?

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Matthew Quittner

Hi Norliana Abd Majid ,

Have you checked that your data meets the following parametric assumptions?

Normality: Data has a normal distribution (KS or SW test)
Homogeneity of variances: Data from multiple groups have the same variance (Levenes test)
Linearity: Data have a linear relationship (Can check with a scatterplot)
Independence: Data are independent (I.e., Calculate P(A), P(B), and P(A ∩ B), and then check whether P(A ∩ B) equals P(A)P(B). If they are equal, A and B are independent; if not, they are dependent).

Regards,

Matt Quittner

Norliana Abd Majid

Tqvm Matthew Quittner for the answer