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4 Tutorials that teach Null and Alternative Hypotheses with Two Samples

# Null and Alternative Hypotheses with Two Samples

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Author: Ryan Backman
##### Description:

This lesson will explain null and alternative hypotheses with two samples.

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Tutorial

## Notes on "Null and Alternative Hypotheses with Two Samples"

Overview

(0:00-0:56) Introduction to Motivating Context

(0:57-1:34) Discussion of Hypothesis Tests with Two Samples

(1:35-3:30) Calculation of Differences and Sample Statistics

(3:31-4:07) Definition of Null Hypothesis with Two Samples

(4:08-4:20) Definition of Alternative Hypothesis with Two Samples

(4:21-5:20) Formulation of Hypotheses

(5:21-6:04) Further Discussion of Hypothesis Tests with Two Samples

Terms to Know
Alternative Hypothesis with Two Samples

A claim that there is a difference in a population parameter between two samples. The alternative hypothesis is always an inequality statement.

Null Hypothesis with Two Samples

A claim about a population difference that serves as the starting assumption for a hypothesis test. The null hypothesis usually tests that the difference in a certain parameter between two samples, such as a mean or standard deviation, is equal to zero.