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The following file contains part of the data for a study of oral condition of cancer patients. The

Question: The following file contains part of the data for a study of oral condition of cancer patients. The oral conditions of the patients were measured and recorded at the initial stage, at the end of the second week, at the end of the fourth week, and at the end of the sixth week. The variables age, initial weight and initial cancer stage of the patients were recorded. Patients were divided into two groups: One group received a placebo and the other group received aloe juice treatment. The variables in the data set are:

trt - treatment group: 0=placebo; 1=aloe juice

TOTALCIN - oral condition at the initial stage

TOTALCW2 – oral condition at the end of week 2

TOTALCW4 – oral condition at the end of week 4

TOTALCW6 – oral condition at the end of week 6

Trt	TOTALCIN	TOTALCW2	TOTALCW4	TOTALCW6
.00	6.00	6.00	6.00	7.00
.00	9.00	6.00	10.00	9.00
.00	7.00	9.00	17.00	19.00
.00	6.00	7.00	9.00	3.00
.00	6.00	7.00	16.00	13.00
.00	6.00	6.00	6.00	11.00
.00	6.00	11.00	11.00	10.00
.00	6.00	11.00	15.00	15.00
.00	6.00	9.00	6.00	8.00
1.00	6.00	10.00	11.00	9.00
1.00	4.00	6.00	8.00	7.00
1.00	6.00	11.00	11.00	14.00
1.00	6.00	7.00	6.00	6.00
1.00	12.00	11.00	12.00	9.00
1.00	5.00	7.00	13.00	12.00
1.00	6.00	7.00	7.00	7.00
1.00	5.00	7.00	7.00	7.00
1.00	7.00	8.00	10.00	8.00