[Sample Data] 

	Sample Size	n	=
	Sample Proportion	p̂	=		0 < p̂ < 1

[Confidence Level]

      1 - α     95% 99%

Execute     [Confidence Interval]   

	zα/2	=		√ p̂ (1-p̂) /n	=
	p̂	±	zα/2	√ p̂ (1-p̂) /n	⇔	[    ,	]

  n = ^{1 1000}    1-α = ^{0.60 0.99}

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