Use this design dialog when you want to compare a site mean to a reference (background) mean.
Can assume the data will be normally distributed
Site of interest and reference area have equal / unequal sample sizes
Ordinary / Multiple Increment sampling method
Type of Surface (for non-normally distributed data)
Type of Calculation (for non-normally distributed data)
Ordinary (Two-Sample t-Test) Sampling
Two-Sample t-Test for Unequal Variance Sampling
MARSSIM WRS Test One Analyte at a Time Sampling
MARSSIM WRS Test Surface Soil Unity Rule Sampling