Question

A beetle population in a large field has a mean density of 51 beetles/m2. We wish to test if an herbicide influences beetle density.

Answer 1

Yes, both designs are quite different from each other because, a quadrat (sampling method)use to isolate a standard unit of area for the study of the distribution of an organism available in that particular isolated areas. it can be of different sizes, for example, rectangular, circular, or irregular. so the design of the quadrate is not mentioned in the first experiment. but in the second experiment a square of 4/4 size has mentioned.