What is the null hypothesis in statistics?

What is the null hypothesis in statistics?

The null hypothesis is a statement that there is no effect or no difference, and it serves as a starting point for statistical testing.

Can you give me an example of a null hypothesis?

Sure! For instance, if you're testing a new drug, the null hypothesis might state that the drug has no effect on patients compared to a placebo.

How do you test the null hypothesis?

You test the null hypothesis using statistical methods, such as t-tests or ANOVA, to determine if there is enough evidence to reject it.

What happens if we reject the null hypothesis?

If you reject the null hypothesis, it suggests that there is significant evidence to support the alternative hypothesis, indicating an effect or difference.

What if we fail to reject the null hypothesis?

Failing to reject the null hypothesis means there isn't enough evidence to support the alternative hypothesis, but it doesn't prove the null hypothesis is true.