1. How significant (numerically) is the difference between covcerage of coniferous (okasmets) and deciduous (lehtmets) forest according to U testi and attached data? Land cover categories are in the column Maakate/cover.
2. Which of these groups has higher mean coverage?
3. Why the t test is not proper for comparing forest coverage values estimated as percentages?
4. Add the software name you used.

Think about theoretical presumptions when choosing a statistical method.

Difference tests in the SDC.