Hypothesis Testing: Maths & Science Guide to Clear and Simple
What a p-value actually tells you, and a four-step method that works for almost every exam question.
Tests without tears
Hypothesis testing confuses students because textbooks start with the formulas.
Start with the question
Every test asks one thing: is this result too unusual to be chance? The p-value is how unusual it is.
Write your hypotheses in words before symbols. It prevents most mistakes.Margin note from Daniel
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Four steps
- State the hypotheses
- Choose the test and significance level
- Calculate the statistic
- Conclude in the context of the question
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