SigmaStat V3.5 by Systat Software Inc. SigmaStat guides researchers step-by-step through the entire analytical process. From choosing the proper statistical test, to checking the data against the underlying assumptions, and generating a report in plain English.

Produce Defensible Research with SigmaStat
SigmaStat is the software program thousands of research scientists worldwide turn to when they want to be expertly guided through the analysis of their data. With SigmaStat you can be confident that you have analysed your data correctly - even if you're not a statistical expert!

• Regression
• Analysis of Variance (ANOVA)
• Nonparametric statistics
• Correlation
• Rates and proportions
• Power and sample size
• Descriptive Statistics
• Survival analysis
• Regression diagnostics