Statistics - Hypothesis Tests

Question 1

What are parameters?

Answer 1

Quantities that describe the characteristics of a population

Such as - mean, variance, proportion

Question 2

What is a hypothesis?

Answer 2

Claim or a statement that may or may not be true

Question 3

What is a hypothesis test?

Answer 3

Statistical test that is used to determine
whether there is enough evidence in a sample of data to infer
that a certain condition is true for the entire population.

Question 4

What are the two hypotheses for every test?

Answer 4

Null hypothesis

Alternative hypothesis

Question 5

What is a null hypothesis (H0)?

Answer 5

Statement about the value of a population parameter

Always gives a specific value to the parameter

Question 6

What are the two results of a stats test?

Answer 6

Reject H0 - data provides evidence that null hypothesis is unlikely to be untrue
Accept H0 - no evidence from data that null hypothesis is unlikely to be untrue