'Upper tail test' diaporamas de présentation

Chapter 9 Introduction to Hypothesis Testing

Business Statistics: A Decision-Making Approach 8 th Edition. Chapter 9 Introduction to Hypothesis Testing. Chapter Goals. After completing this chapter, you should be able to: Formulate null and alternative hypotheses involving a single population mean or proportion

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Introduction to Hypothesis Testing

Introduction to Hypothesis Testing. What is a Hypothesis?. A hypothesis is a claim (assumption) about a population parameter: population mean population proportion. Example: The mean monthly cell phone bill of this city is ? = $42.

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Chapter 8 Introduction to Hypothesis Testing

Chapter 8 Introduction to Hypothesis Testing. Chapter Goals. After completing this chapter, you should be able to: Formulate null and alternative hypotheses for applications involving a single population mean Formulate a decision rule for testing a hypothesis

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Chapter 8 Hypothesis Tests

Chapter 8 Hypothesis Tests. What are Hypothesis Tests ? A set of methods and procedure to s tudy the reliability of claim s about population parameter s. Examples of Hypotheses :. The air quality of San Diego meets federal standards.

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Inference on the Variance

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Z Test of Hypothesis for the Mean ( ? Known)

Z Test of Hypothesis for the Mean ( ? Known). X. Convert sample statistic ( ) to a Z test statistic. Hypothesis Tests for ?. ? Known. ? Unknown. The test statistic is:. Critical Value Approach to Testing. For two tailed test for the mean, ? known:

348 views • 8 slides