Sample Size Calculator
(Richard Geiger)
Confidence Level:
مستوى الثقة:
70%
75%
80%
85%
90%
95%
98%
99%
99.9%
99.99%
99.999%
Margin of Error (%):
هامش الخطأ:
Population Proportion (%):
نسبة الخاصية فى المجتمع:
Use 50% if not sure.
Population:
حجم المجتمع:
Calculate
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