Statistical Tools

Being able to analyse and present data is a Lean Six Sigma essential. We’ve developed some simple online tools to help you below. If you would like to bookmark this page for future use, press ctrl + D to bookmark this page.

Analysis Tools

From visualising distributions and spotting relationships to comparing variations, these tools help you understand your data with confidence.

Box Plot

Box plots are an alternative to dot plots and may be easier to interpret when using larger sample sizes.

Dot Plot

Accurately segment Y data which would usually be displayed on a histogram.

Pareto

Use our Pareto Chart to display the frequency of occurrence of categorised data.

Scatter Plot

Use our Scatter Plot Chart to identify whether there is a relationship between the X and Y data.

Histogram

Use our Histogram Tool to visualise the shape, and therefore distribution, of your data.

Control Chart Tools

Monitor and improve performance with our Control Chart Tools. Track stability, identify variation and measure change over time to support continuous improvement.

Staged Control Chart

Use this chart to demonstrate before and after performance.

X/mR Chart

Use this chart to visualise the behaviour of the process using systematically sampled data.

Run Chart

Use this chart to visualise the behaviour of the process using systematically sampled data.

Calculator Tools

Simplify complex calculations with our range of Calculator Tools. From determining process capability and defect rates to helping you make confident, data-driven decisions.

Takt Time Calculator

Use our Takt Time Calculator to establish if your process is capable of keeping pace with demand.

Process Sigma Calculator

Use process sigma to report quality taking into account the number of opportunities for defects to occur.

Sample Size Calculator

Use our Sample Size Calculator to determine the required sample size for statistical analysis.

Finding our free tools helpful?

That’s just the beginning. Start your free trial of CatStat today and unlock far more than standalone tools – advanced statistical tools at the right level for you, AI-guided analysis, connected workflows, and built-in project management, all backed by practitioner expertise to turn insights into real business improvement.