Confidence Interval Websites
statcrunch.com
StatCrunch provides data analysis via the Web. Upload data for analysis, export results and create reports. Browse the items StatCrunch users are sharing.
No data 
$ 8.95
statsdirect.com
StatsDirect statistics software for biomedical and public health research. Easy to use; state-of-the-art methods; well-documented; affordable; free trial
122,458 $ 90,600.00