Introduction to Hypothesis Testing

Introduction to Hypothesis Testing PowerPoint PPT Presentation


  • 81 Views
  • Uploaded on
  • Presentation posted in: General

DefinitionHypothesis in statistics, is a claim or statement about a property of a population. Rare Event Rule for Inferential Statistics. If under a given assumption, the probability of an observed event is exceptionally small, we conclude that the given assumption is probably not correct.. Co

Download Presentation

Introduction to Hypothesis Testing

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


1. Introduction to Hypothesis Testing

2. Definition Hypothesis in statistics, is a claim or statement about a property of a population

3. Rare Event Rule for Inferential Statistics If under a given assumption, the probability of an observed event is exceptionally small, we conclude that the given assumption is probably not correct.

4. Components of a Formal Hypothesis Test

5. Null Hypothesis: H0 Statement about value of  population parameter Must contain condition of equality =, ?, or ? Test the Null Hypothesis directly Reject H0 or fail to reject H0

6. Alternative Hypothesis: H1 Must be true if H0 is false One of three forms: ?, <, >

7. Note about Forming Your Own Claims (Hypotheses) If you are conducting a study and want to use a hypothesis test to support your claim, the claim must be worded so that it becomes the alternative hypothesis.

8. Test Statistic a value computed from the sample data that is used in making the decision about the rejection of the null hypothesis For large samples, testing claims about population means the test statistics is:

  • Login