11.2 How to set the hypotheses
Null Hypothesis (H0)
: This is the default assumption or statement that there is no effect or no difference. It represents the status quo.Alternative Hypothesis (Ha)
: This is the statement you want to test, suggesting that there is an effect or a difference.
{H0Null HypothesisHaAlternative Hypothesis
Setting a threshold:
- One side
{H0α≤0.05Haα>0.5
- Two sides
{H0α=0.05Haα≠0.05