What is H0 in a hypothesis test?
The thing we assume to be true
What is H1 in a hypothesis test?
The alternative hypothesis, what we think could be true given observed data.
What two types of tailed test can there be?
Two tailed
One tailed
If testing at the 5% significance level, what will you test at on both sides?
2.5%
What are values on the boundary of the critical region called?
Critical values
What is the critical region?
The range of values that would lead you to rejecting H0
What is the ‘actual significance level’?
Actual probability of being in the critical region.
How can a one-tailed test be expressed in k and p?
p>k or p<k
How can a two-tailed test be expressed in k and p?
p ≠ k
What do you write when making a conclusion in a hypothesis test?
- Do we reject H0 or H1.
- Put into context of the original problem.
What do you do to the critical region in a two-tailed test?
Split the critical region by halving the significance level at each end.
