I. DETERMINE THE SAMPLE SIZE OF THE FOLLOWING USING COCHRAN'S FORMULA AND YAMANE'S METHOD:

1. GIVEN:Confidence level = 90%,e = 5%, N = 2525

2. GIVEN :Confidence Level = 95% , e = 1%, N = 1200

3. GIVEN :Confidence Level = 99%, e = 5%, N= 3216

II. USE STRATEFIED RANDOM SAMPLING TO DETRMINE THE NUMBER OF SAMPLES IN EACH GROUP. USE YAMANE' METHOD. GIVENe = 5%

GROUP MEMBERS PROCEDURE RESULT

A 245

B 366

C 1020

D 812

E 445

F 349

G 312

H 199

I 225

J 1114

TOTAL