AP Stats Vocab Check 4/21

• A claim we are seeking evidence for.

• A claim we are trying to show is wrong or unlikely.

• A claim that there is no change.

• Something Mrs. Howard just made up.

What is an "Alternate Hypothesis"  $\left(H_a\right)$ ?

• The claim we make after looking at all the data.

• The claim that we have evidence may be true if the Null is not.

• The claim that one of two proportions are correct.

• The claim that we have evidence for a result being statistically significant.

• How confident we are that something is true.

• The percentage of times an event occurs when given a population proportion.

• The percentage we use to measure whether something is unlikely to occur by random chance.

• The instances at the remote ends of the normal distributions.

What is the "P-value" ?

• The number of samples before/after the significance level over n.

• The average of all samples in a sampling distribution.

• The true population parameter of proportions.

• The percentage determined to be the significance level.

What is a significance test?

• The process with which we find the significance level.

• A test that is very important.

• Using z-score to determine the probability of an event occurring by random chance.

• The process used to determine if a result is likely to occur by random chance or not.