Sample Calculator app for iPhone and iPad

4.4 ( 544 ratings )

Business Education
Developer: Bill Nolen

0.99 USD

Current version: 1.0, last update: 6 years ago
First release : 17 Aug 2015
App size: 9.14 Mb

The Sample Calculator answers one of the most frequently asked questions in statistics: What size sample do I need?

You provide the estimated population variance (standard deviation) and the allowable error band, choose one of two confidence levels (.95 or .99), and the sample size needed is displayed.