A large orchard owner in the state of Washington is interested in determining whether the mean number of bushels of peaches per acre is the same or different depending on the type of tree that is used. He also thinks that production may be affected by the type of fertilizer that is used. To test, he has set up a test in which a one-acre plot of peach trees with a combination each of 5 varieties and 3 fertilizer types are studied. In this case, the number of treatments is:
A) 5
B) 3
C) 15
D) Can't be determined without knowing how many trees are planted on each acre.

Question

Quizplus · Accepted Answer

The number of treatments is determined by the combination of tree varieties and fertilizer types, which is 5 varieties * 3 fertilizer types = 15 treatments.

A Large Orchard Owner in the State of Washington Is