How do I simulate a hypothesis test?

Open this page and use the live PCA tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive a hypothesis test from your own measurements.

Use case · powered by PCA

PCA for a hypothesis test

Simulate a hypothesis test live in your browser. This runs the real PCA solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

For:Students Researchers Educators Engineers Hobbyists & Makers K-12 Students First Responders

Principal Component AnalysisLive

finding the axes of variation

Controls

Presets

Correlation

Spread (x)

PCA finds the directions along which data varies most. The eigenvectors of the covariance matrix are the principal components (cyan = most variance, green = least), and their eigenvalues are the variances along each. Projecting onto the top components is the basis of dimensionality reduction.

▶ Run in Python

Data Inspector

Variance PC10.00

Variance PC20.00

PC1 explains0%

PC1 angle0°

Governing equation

C v = λ v, \frac{λ _{1}}{λ _{1} + λ _{2}} = \frac{0.00}{0.00} = 0.00

Reading this result: PC1 explains 0% of the variance here; the stronger the correlation between features, the more PCA concentrates information on that first component.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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About this simulation

The full PCA tool models a hypothesis test with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

More you can do with PCA

PCA for an A/B test PCA for a survey sample PCA for a poll margin PCA for a quality-control chart PCA for a clinical trial PCA for a customer churn PCA for a click-through rate PCA for an exam-score curve

Other ways to simulate a hypothesis test

Optimize + UQ for a hypothesis test Hypothesis Test for a hypothesis test Linear Regression for a hypothesis test Central Limit Theorem for a hypothesis test Confidence Intervals for a hypothesis test Bayesian Inference for a hypothesis test

Frequently asked questions

How do I simulate a hypothesis test?: Open this page and use the live PCA tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive a hypothesis test from your own measurements.