N Sample Size app for iPhone and iPad
4.2 (
6482 ratings )
Reference
Productivity
Developer: Katherine Mulloy
Free
Current version: 1.1, last update: 7 years agoFirst release : 30 Apr 2012
App size: 45.39 Kb
This app was created because it is the only equation I ever look up in my college engineering statistics textbook. It is used to calculate the minimum sample size based on the standard deviation and error in the mean. Determining the minimum sample size saves tremendous waste, money, and time.