Table 3 U values and z-scores of the answers for the survey (scale 1-5)
Question | U value | critical value for p<0.05 (U value) | z-score | critical value for p<0.05 (z-score) |
|---|---|---|---|---|
The cluster analysis algorithm helped me to perceive... | 12.5 | 6 | 1.02 | 0.31 |
The cluster analysis algorithm helped me to understand... | 17.0 | 6 | -0.37 | 0.71 |
The cluster analysis algorithm helped me to discover... | 8.5 | 6 | -1.61 | 0.11 |
The final clusters were justified | 16.5 | 6 | -0.44 | 0.66 |
I understand what cluster analysis... | 17.0 | 6 | -0.37 | 0.71 |
I understand differences within... | 19.5 | 6 | 0 | 1 |
It is difficult to understand why... | 13.0 | 6 | 0.95 | 0.34 |
It is difficult to discover... | 18.5 | 6 | -0.15 | 0.88 |
I learned something new... | 19.5 | 6 | 0 | 1 |