Normality Test
Answer the question "parametric or non-parametric?". Get a PDF report with the Shapiro-Wilk test, skewness/kurtosis values and Q-Q plots in seconds.
Shapiro-Wilk Test
The W statistic and p-value are calculated for each variable. p < 0.05 indicates a departure from normality.
Skewness & Kurtosis
Skewness and kurtosis values are interpreted against the critical limits of ±1.96 and ±2.58.
Q-Q Plot
A visual normality plot for each variable is added to the PDF.
Automatic Recommendation
The decision "a parametric test can be used" or "a non-parametric test is recommended" is made automatically.
How It Works?
Upload your CSV or Excel file.
The analysis completes automatically within seconds.
View the results on screen and download them as a PDF.
Create a free account and start using it right away.
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