Practice Flashcards: AP Statistics — statistical inference | Zestly

Question 1

Confidence interval interpretation

Accepted Answer

The confidence level describes the long-run success rate of the method, not the probability that a specific interval contains the parameter.

Question 2

Factors narrowing an interval

Accepted Answer

Increasing the sample size $n$ narrows the interval, while increasing the confidence level widens it.

Question 3

Null hypothesis definition

Accepted Answer

The null hypothesis $H_0$ is a statement of no effect or no difference, typically representing the status quo.

Question 4

Alternative hypothesis definition

Question 5

P-value definition

Question 6

Significance level $\alpha$

Question 7

Type I error

Question 8

Type II error

Question 9

Statistical power

Question 10

Statistical vs practical significance

Question 11

Chi-square test for independence

Question 12

Conditions for inference