the changing climate will probably bring more rain to california, but we don’t know whether the additional rain will come during the winter wet season or extend into the long dry season in spring and summer. kenwyn suttle of the university of california at berkeley and his coworkers carried out an experiment to study the effects of more rain in either season. they randomly assigned plots of open grassland to 3 treatments: added water equal to 20% of annual rainfall either during january to march (winter) or during april to june (spring), and no added water (control). thirty-six circular plots of area 70 square me- ters were available (see the photo), of which 18 were used for this study. one response variable was total plant biomass, in grams per square meter, produced in a plot over a year.35 (a) outline the design of the experiment. what is this type of design called? (b) explain how you would randomly assign the experimental units to the three treatments. then carry out your random assignment.
