Given a list of numbers calculates the 95% confidence interval.

Found myself writing the same script to calculate the confidence interval for various lists time and time again. This should mitigate that problem.

Using NPM for simple installs and possible updates.

npm install -g confidence95

~ confidence95 12 13 15
13.333333333333334 +/- 1.4113353846904737

var confidence95 = require('confidence95');
var conf = confidence95([12 13 15]);
/*
conf = {
  mean: 13.333333333333334,
  std: 1.247219128924647,
  interval: 1.4113353846904737
}
*/