# MANG 575 Module 10: Hypothesis testing

## Objectives:

• Understand what is a hypothesis
• Be able to conduct a hypothesis test about a population mean
• Be able to conduct a hypothesis test about a population proportion
• Be able to distinguish between a one-tailed and two-tailed hypotheses tests
• Be able to define and distinguish between Type I and Type II errors

Chapter 10 – Textbook
Lecture Power Point (.pptx)

## Introduction:

In the previous chapter we calculated confidence intervals, which gives us a range of values in which the population parameter (mean) is expected to occur.  Now we conduct a test to examine the validity of a statement (hypothesis) about a population parameter.  Some examples of such a statement that we might be interested in testing include;

• The average delivery time for a pizza company
• The average grade earned by student in statistics

Hypothesis – A statement about a population parameter.  For example, we want to test that the average GPA of business students is greater than 2.0

## Reflection:

Summary of this module.

## Practice Quiz

Practice Quiz for this module, feel free to take multiple times.

## Quizzes

Take the quiz for this module on Canvas.

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