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Sample Size Calculator

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Sample Size Calculator


Sample Size Calculator calculates the size of random sampling error in a survey's results. The larger the margin of error, the less faith one should have that the poll's reported results are close to the "true" figures; that is, the figures for the whole population.

The calculation is based on a confidence interval that will provide an error in percentage from your sample's parameters to the ones on the population.

Recent changes:
None.
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Free
85
4.3
User ratings
11
Installs
1,000+
Concerns
0
File size
64 kb
Screenshots
Screenshot of Sample Size Calculator Screenshot of Sample Size Calculator

About Sample Size Calculator
Sample Size Calculator calculates the size of random sampling error in a survey's results. The larger the margin of error, the less faith one should have that the poll's reported results are close to the "true" figures; that is, the figures for the whole population.

The calculation is based on a confidence interval that will provide an error in percentage from your sample's parameters to the ones on the population.

Recent changes:
None.

User reviews of Sample Size Calculator
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Android Market Comments
A Google User
May 15, 2014
Simplicity personified Excellent app for being able to ascertain the confidence interval (margin of error) of your study. 5 stars if the formula and corresponding literature (harvard) was cited for increased rigour, and confidence to trust data.
A Google User
Jun 16, 2012
It helps but not enough. I like it and when inputting it does not allow decimals. I understand making it simple but a hint my be to say input the percentage as a real number i.e. 3.5% inputted as .035.
A Google User
Jun 16, 2012
It helps but not enough. I like it and when inputting it does not allow decimals. I understand making it simple but a hint my be to say input the percentage as a real number i.e. 3.5% inputted as .035.
Kevin
Jun 16, 2012
It helps but not enough. I like it and when inputting it does not allow decimals. I understand making it simple but a hint my be to say input the percentage as a real number i.e. 3.5% inputted as .035.
A Google User
Feb 27, 2012
Nice one Calculates as it should. Some minimal design would be useful.