What you have to know:
-
You must know how to calculate probabilities.
(If not, check this lesson)
Binomial distribution
What you have to know:
-
You must know how to calculate probabilities.
(If not, check this lesson)
Key Points
- 1. Watch the video:
Poisson distribution
What you have to know:
-
You must know how to calculate probabilities.
(If not, check this lesson)
Key Points
- 1. Watch the video:
Normal distribution
What you have to know:
-
You must know how to calculate probabilities.
(If not, check this lesson)
Type I and Type II errors
What you have to know:
- A probability of a type I error is the probability of rejecting H₀ when H₀ is true. For the normal distribution this will be equal to the significance level; for a discrete distribution this will be the probability of the statistic falling in the critical region.
- In order to find the probability of a type II error, first find the critical region under the null hypothesis.
- The probability of a type II error is the probability of the statistic not being in the critical region. This is calculated using a value for the parameter chosen from the alternative hypothesis.
Key Points
- 1. Watch the video:
IB Past Paper Problems
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