Introducing Statistics 6: Hypothesis Testing

6 flashcards · Mathematics · by lakesare

1. What is statistical inference?

   When we infer back: from the sample to the population.

2. When are the events mutually exclusive.

   When they don't share any outcomes.

3. When are the two events statistically independent?

   When occurrence of one event doesn't affect the other.

4. P(A and B) is concerned with _________________ P(A or B) is concerned with _________________

   P(A and B) is concerned with statistical independence P(A or B) is concerned with mutual exclusivity

5. What's a probability distribution?

   Function that maps every event to its probability. The probability mass function (pmf) p(S) specifies the probability distribution for the sum S of counts from two dice.

6. Name 3 steps in a hypothesis test.

   State a hypothesis H0