difference statistics

apb

New Member
#1
I have a few queries:
1. I am investigating into how beach nourishment schemes affect rates of change on a beach, so for 27 locations I have the seasonal, annual and overall data. the pre and post nourishment datasets are not of equal size and I am not expecting the results to be similar. therefore are there any suggestions as to what statistics i should use? i've tried the t test but i dont know if this is right or not.

2. I am also investigating the difference between natural and nourished beaches and I have 5 datasets for the natural sections and 22 datsets for the nourished sections. Have you got any ideas as to what stats I should use for this?

3. I am also trying to show the seasonal, annual and overall changes in beach length and have no idea what statistics to use for this. Have you any suggestions as to what stats I can use?

Any help will be much appreciated!!