Consider an experiment to compare the effectiveness of two different pesticides, A and B say, both applied in two differ
Posted: Mon Sep 06, 2021 7:13 am
Consider an experiment to compare the effectiveness of two different pesticides, A and B say, both applied in two different forms: spray (A. and B) and powder (Az and B2). A control treatment (i.e., no pesticide), C say, is also included in the experiment in order to establish any effectiveness of the pesticides at all. Thus, altogether there are 5 treatments (Au, A2, B1, B2 and C) and each treatment is randomly applied to r uniformly infested plots of land. Obtain a complete set of meaningful orthogonal contrasts and describe what each contrast is testing,