AP Statistics Unit 5 Review

Front

What is the standard deviation of the sampling distribution for a sample size of n from a population with standard deviation σ?

Back

Front

Define the mean of the sampling distribution.

Back

Front

Back

Front

How do you calculate the standard deviation of a sample proportion?

Back

Front

What is the Central Limit Theorem?

Back

The Central Limit Theorem states that the sampling distribution of the sample mean will be approximately normally distributed if the sample size is sufficiently large, regardless of the population's distribution.

Front

What is the formula for the z-score in hypothesis testing?

Back

Front

What is the significance of a p-value in hypothesis testing?

Back

The p-value indicates the probability of observing the test results under the null hypothesis; a low p-value suggests that the null hypothesis may be rejected.

Front

What does a confidence interval represent?

Back

A confidence interval provides a range of values within which the true population parameter is expected to lie, with a certain level of confidence (e.g., 95%).

Front

How do you interpret a 95% confidence interval?

Back

A 95% confidence interval means that if we were to take many samples and build intervals, approximately 95% of those intervals would contain the true population parameter.

Front

What is the difference between a population and a sample?

Back

A population includes all members of a specified group, while a sample is a subset of the population used to make inferences about the population.