A psychologist would like to examine the effects of a new drug on the activity level of animals. Three samples of rats are selected withn= 5 in each sample. One group gets no drug, one group gets a small dose, and the third group gets a large dose. The psychologist records the activity level for each animal. The data from this experiment are presented below.

No drug

Small dose

Large dose

5

5

10

3

5

12

1

9

9

G= 90

1

6

6

X2= 678

5

5

8

T1= 15

T2= 30

T3= 45

SS1= 16

SS2= 12

SS3= 20

A. Present a completed results table to report your answers. (4.5 points)

B. State the statistical decision to be made at thea= .05 level of significance. (0.5 point)