Sample Size and Confidence Interval Calculator

 

Sample size required if desired confidence interval and population size are known (p=.5)

Please enter a number in the Error Desired and Population Size fields then tab out of those fields to calculate.
Do not use commas or other formatting characters:

»~®t~: %
¨ü´úÁ`¼Æü:
³Ì§C¼Ë¥»¼Æ ³Ì¤j¼Ë¥»¼Æ
@90% «H¤ß¤ô·Ç:
@95% «H¤ß¤ô·Ç:
@99% «H¤ß¤ô·Ç:

 



 

Confidence interval if population and sample size are known (p=.5)

Please enter a number in the Population and Sample Size fields then tab out of those fields to calculate.
Do not use commas or other formatting characters:

¨ü´úÁ`¼Æ:
¼Ë¥»¼Æ:
«H¿à°Ï¶¡ (+/-) ³Ì¤j»~®t
@90% «H¤ß¤ô·Ç:
@95% «H¤ß¤ô·Ç:
@99% «H¤ß¤ô·Ç: