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Annex

Sample size for 95 % confidence level of detecting 2 % prevalence of disease

Effective 14 July 2015 to 18 March 2017

Population Size	Sample Size
10	10
20	20
30	30
40	40
50	48
60	55
70	62
80	68
90	73
100	78
120	86
140	92
160	97
180	101
200	105
250	112
300	117
350	121
400	124
450	127
500	129
600	132
700	134
800	136
900	137
1000	138
1200	140
1400	141
1600	142
1800	143
2000	143
3000	145
4000	146
5000	147
6000	147
7000	147
8000	147
9000	148
10000	148
Greater than 10000	149