Lecture 9 Chapter 8 (2)

Lecture 9 Chapter 8 (2) - Slide 1 Chapter 8: Introduction...

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Slide 1 Click to edit Master subtitle style Chapter 8: Introduction to Hypothesis Testing Spring 2010
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Slide 2 Hypothesis Testing The hypothesis test is used to evaluate the results from a research study in which n A sample is selected from the population. n The treatment is administered to the sample. n After treatment, the individuals in the sample are measured.
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Slide 3 Hypothesis Testing n Hypothesis testing is a technique to help determine whether a specific treatment has an effect on the individuals in a population. n The general goal of a hypothesis test is to rule out chance (sampling error) as a plausible explanation for the results from a research study.
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Slide 5 Hypothesis Testing (cont.) n If the individuals in the sample are noticeably different from the individuals in the original population, we have evidence that the treatment has an effect. n However, it is also possible that the difference between the sample and the population is simply sampling error
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Slide 8 New terms Null Hypothesis Alpha Level Critical Region Test Statistic
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Five-step procedure for hypothesis n State the hypotheses
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This note was uploaded on 03/11/2010 for the course PSYCH 211 taught by Professor Natalieperson during the Spring '10 term at Rhodes.

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Lecture 9 Chapter 8 (2) - Slide 1 Chapter 8: Introduction...

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