Description of the data The data are from a study of weight

Description of the data:

The data are from a study of weight gain, where investigators randomly assigned

30 rats to three treatment groups: treatment 1 was a control (no additive); treatments 2 and 3 consisted of two different additives (thiouracil and thyroxin respectively) to the rats drinking water. Weight was measured at baseline (week 0) and at weeks 1, 2, 3, and 4.

Note: Due to an accident at the beginning of the study, data on 3 rats from the thyroxin group are unavailable.

Variable List:

ID, Treatment (1=Control, 2=Thiouracil, 3=Thyroxin),

Baseline Weight (Week 0), Weight at Week 1, Weight at Week 2,

Weight at Week 3, Weight at Week 4.

###############################################################

compare between TWO TABLS:

1. individual contrasts

Label

Num DF

Den DF

F Value

Pr > F

status

group 1 and 3 overall

3

24

1.40

0.2666

Insignificant

2. Togater :

Type 3 Tests of Fixed Effects

Effect

Num DF

Den DF

F Value

Pr > F

status

group

3

24

1438.03

<.0001

significant

week*group

3

24

196.11

<.0001

significant

week2*group

3

24

5.91

0.0036

significant

Solution

Please explain the question in detail.what test to be explained.