Video

Introduction to Chapter 7
Introduction to Chapter 7

Looking at Sampling Error
The sampling error of the mean is only one kind of sampling error.

The Null Hypothesis
This video describes a null hypothesis side by side with other types of hypotheses.

Creating Hypotheses
Neil Salkind discusses how hypotheses are created in different contexts.

Chapter Summary
Super cute reflections on learning statistics.

Web

The Research Hypothesis
This page explains what a research hypothesis is.

Questions About Test Direction
Here's an FAQ about one and two tailed tests.