a) Percentage Method: to show the trend of the variable.
b) Chi-square: to test the independence of the attributes.
c) Two-way ANOVA: to test the equality of the variances between two sets of variables.
d) Rank correlation: to find the relationship between two variables.
e) Z-test: to test the equality of two-population proportion.
f) t-test: to test the significance of the results of rank correlation.
g) Kendall’s concordance test: to test the significance of agreement in ranking.