Khan Academy

Sampling distribution of sample proportion part 1 (K-A)

Sampling distribution of sample proportion part 2 (K-A)

Central limit theorem (K-A)

Introduction to sampling distributions (K-A)

Sampling distribution of the sample mean (part 2) (K-A)

Sampling distribution of the sample mean (K-A)

Density Curves (K-A)

Probabilities from density curves (K-A)

Calculating a P-value given a z statistic (K-A)

Calculating a z statistic in a test about a proportion (K-A)

Making conclusions in a test about a proportion (K-A)

Significance test for a proportion free response (part 2 with correction) (K-A)

Significance test for a proportion free response example (K-A)

Conditions for confidence interval for a proportion worked examples (K-A)

Conditions for valid confidence intervals for a proportion (K-A)

Critical value (z*) for a given confidence level (K-A)

Determining sample size based on confidence and margin of error (K-A)

Example constructing and interpreting a confidence interval for p (K-A)

Calculating a confidence interval for the difference of proportions (K-A)

Confidence intervals for the difference between two proportions (K-A)

Examples identifying conditions for inference on two proportions (K-A)

Confidence intervals and margin of error (K-A)

Confidence interval simulation (K-A)

Interpreting confidence level example (K-A)

Examples identifying Type I and Type II errors (K-A)