Mathematics, 04.01.2020 23:31 zitterkoph

You're designing an experiment that looks at the effect of different types of newly
developed fish food on the growth rate of three species of fish: tiger fish, guppies,
and goldfish. the treatments are new food #1, new food #2, and old food. for a
randomized block design, blocked on species of fish, how many treatment groups
would you have? (think of "old food" as one of the treatments.)

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