For my A2 coursework I must choose an appropriate statistical test which is most suited to my data and title : To investigate the effects of trampling on the Burford Spur, Box hill- Surrey (TQ 175 520.)
Using a transect and quadrat measuring 0.50 by 0.50m I recorded the length of a longest plant species, the soil depth, soil PH and soil temperature up to starting at 0.0M up to 0.9M (along the transect.) This was done twice, on two seperate areas- being relatively near eachother. I began at a path (being the most trampled area) and worked my way into grassland (being the least trampled area.)
As part of my coursework, governed under 'section E: Statistical test'
I must choose one of the following statistical tests which are most appropiate:
*Students t test & Mann Whitney U test (which looks at differences) OR
*Spearman’s Rank correlation coefficient (which tests the strength of a relationship)
I'm lead to believe that the most suitable statistical test would be the Mann Whitney U test as this statistical test assesses whether two samples of observations come from the same distribution...
However, I’m not entirely sure so I've come to a halt. Please give me helping hand.
Thanks in advance.