Topic: Unit 4: Inference for Quantitative Data: Means

Why Small Samples Miss Real Differences

Why Conditions Matter in Mean Inference

What Power of a Test Means

Verifying Conditions From Summary Statistics Only

Using the t Table to Bound a P-Value

Two-Sample Intervals From Experiment Data

The Form of a One-Sample t Interval

The Parameter mu d in Paired Inference

Test Statistic Sign and Direction of the Alternative

Statistical Significance in Observational Studies