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I need help with this assignment, i need it done asap. I was hoping you could help me understand it. Hypothesis Testing Forum Initial Post due by

I need help with this assignment, i need it done asap. I was hoping you could help me understand it.




Hypothesis Testing Forum Initial Post due by 4/23 Replies 4/25

Hypothesis Testing Type 1 and Type 2 Errors


Introduction

This assignment allows students to examine the different errors that may occur when performing hypothesis testing and to express their understanding of these errors on how they understand it.


This assignment fulfills:


Module Objective 2: You will have performed hypothesis testing to validate the strength of a population mean.

Course Outcome 5: You will have analyzed sample data to draw inferences about a population parameter.


The Prompt

Respond to the following discussion question for this module.


Part 1: Consider the following situation: When 40 people use the Weight Watchers diet for one year, their mean weight loss was = 3.0 pounds. The historical standard deviation is σ = 4.9 pounds (based on data from "Comparison of the Atkins, Ornish, Weight Watchers, and Zone Diets for Weight Loss and Heart Disease Reduction," by Dansinger, et al., Journal of the American Medical Association, Vol. 293, No. 1). Use a 0.01 significance level to test the claim that the mean weight loss is greater than 0.


What are the null and alternate hypotheses? What would be the result of a Type 1 error in this situation? What would be the result of a Type 2 error? Express your answers in the context of the situation given.


Part 2: Express in your own words what committing Type 1 and Type 2 errors means when performing a hypothesis test. State why you feel it is important to understand the difference in these types of errors and how they can have an impact on the outcome of the test.


Grading Criteria

Students must provide answers to both part 1 and part 2. The answers should be well thought out and address the situation given.


Constructive responses to classmates will offer guidance in understanding the meaning of the errors if needed. Does the person you are responding to have a good understanding of the errors? Have their statements helped your understanding of these errors?

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