Meaning of Hypothesis Testing

Simple definition

Hypothesis testing is a statistical method used to determine whether a hypothesis about a dataset is supported by evidence or should be rejected.

How to use Hypothesis Testing in a professional context

In business and research, hypothesis testing is used to validate assumptions, such as whether a marketing campaign improves sales or a new drug is effective.

Concrete example of Hypothesis Testing

A company tests if a new website design increases user engagement by comparing click-through rates (CTR) before and after implementation using hypothesis testing.

What are the steps in hypothesis testing?

Define null and alternative hypotheses, select a significance level, conduct the test, and make a decision.

What is the null hypothesis?

It is a statement assuming no effect or difference, tested against the alternative hypothesis.

What are common types of hypothesis tests?

T-tests, chi-square tests, and ANOVA are widely used.
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