Transcription of Introduction to Hypothesis Testing
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Introduction to Hypothesis Testing
CHAPTER8 Introduction to Hypothesis TestingLEARNING OBJECTIVESA fter reading this chapter, you should be able to:1 Identify the four steps of Hypothesis Define null Hypothesis , alternative Hypothesis , level of significance, test statistic, p value, and statistical Define Type I error and Type II error, and identify the type of error that researchers Calculate the one-independent sample z test and interpret the Distinguish between a one-tailed and two-tailed test, and explain why a Type III error is possible only with one-tailed Explain what effect size measures and compute a Cohen s d for the one-independent sample z Define power and identify six factors that influence Summarize the results of a one-independent sample z test in American Psychological Association (APA)
and Hypothesis Testing 8.2 Four Steps to Hypothesis Testing 8.3 Hypothesis Testing and Sampling Distributions 8.4 Making a Decision: 8.5 Testing a Research Using the z Test 8.6 Research in Focus: Directional Versus Nondirectional Tests 8.7 Measuring the Size of an Effect: Cohen’s d 8.8 Effect Size, Power, and Sample Size
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