What Does a P-Value Mean? Beginner Statistics
P-values can sound confusing, but the basic idea is simple.🪙A p-value tells you how surprising your result would be if your starting idea were true.
In this video, we use a fair coin to explain it. If a coin lands on heads five times in a row, is that just luck, or could the coin favor heads?
We break down:
• what a p-value means
• why researchers compare it with 0.05
• what “statistically significant” means
• why a small p-value gives evidence, not proof
For five heads in a row, the p-value is about 0.031. Because this is smaller than 0.05, the result is considered statistically significant. But that does not prove the coin is unfair. Rare results can still happen by chance.📊
The key idea to remember:
A smaller p-value means the result would be more surprising if the starting idea were true.
Perfect for students, beginners, and anyone learning statistics or hypothesis testing for the first time.
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