Khan Academy

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

Reference: Conditions for inference on a mean-link (K-A)

Sample size for a given margin of error for a mean (K-A)

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

Confidence interval simulation (K-A)

Interpreting a z interval for a proportion (K-A)

Simulation showing value of t statistic (K-A)

Confidence intervals and margin of error (K-A)

Reference: Conditions for inference on a proportion-link (K-A)

Interpreting confidence level example (K-A)

Interpreting confidence levels and confidence intervals (K-A)

Consequences of errors and significance (K-A)

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

Examples thinking about power in significance tests (K-A)

Introduction to power in significance tests (K-A)

Comparing P-value from t statistic to significance level (K-A)

Introduction to Type I and Type II errors (K-A)

Conditions for a t test about a mean (K-A)

Example calculating t statistic for a test about a mean (K-A)

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

Free response example: Significance test for a mean (K-A)

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

Reference: Conditions for inference on a mean (K-A)

Conditions for a z test about a proportion (K-A)

Using a table to estimate P-value from t statistic (K-A)