Name: Atya Faza Azizah NIM: 143231004
Mann Whitney Test
Normality test
Tests of Normality
MINORITY
Kolmogorov-Smirnova Shapiro-Wilk
Statistic df Sig. Statistic df Sig.
SALARY not minority .195 370 .000 .802 370 .000
minority .244 104 .000 .634 104 .000
a. Lilliefors Significance Correction
The significance value of not minority and minority datas are less than 0.05. So, the data distribution is not normal. That;s why, we need to do a Mann whitney test
Mann whitney test
Mann whitney test criteria:
If significant is less than 0.05, that means there is a significant change in the data
If significant is more than 0.05, that means there is no significant change in the data
Ranks
MINORITY N Mean Rank Sum of Ranks
SALARY not minority 370 250.47 92672.50
minority 104 191.37 19902.50
Total 474
Test Statistics
aSALARY Mann-Whitney U 14442.500
Wilcoxon W 19902.500
Z -3.887
Asymp. Sig. (2-tailed) .000 a. Grouping Variable: MINORITY
As we can see from this table, there is a significant change in the data because the significant value is less than 0.05
