Pallant (2010) focuses on two statistical techniques can be divided into two categories called mathematical statistics and non-parametric; Two techniques are used under different circumstances depending on what is being measured, balanced information. Using the non-parametric techniques, according to the Pallant (2010), other than applicable and appropriate in situations where data are measured on the scales and specified sequence, or when the sample size is small (Pallant 2010; Burns, 2000), there are different levels of measurement; small scale and in order categorical variable (Agresti, 2007), while the ratio over time scales that measure continuous (Pallant 2010; Burns, 2000).
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