Question: A botanist plants random samples of each of three different strains of roses on 6

plots of ground. The plots are the same size and fertility. The yields per plot are as follows:

Strain 1 Strain 2 Strain 3

12 9 12

10 15 15

9 14 16

11 12 20

10 13 18

13 8 11

At a = 0.05, can the botanist conclude that there is a difference between the strains in the mean number of roses produced?