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32 hypothesis tests for paired samples 3 if counseling

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Unformatted text preview: ADVANCEMENT OF TEACHING A PATHWAY THROUGH STATISTICS, VERSION 1.6, STATWAY™  ­ INSTRUCTOR NOTES STATWAY™ STUDENT HANDOUTS | 2 Lesson 10.3.2 Hypothesis Tests for Paired Samples 3 If counseling helps reduce anxiety, would we expect the difference, post ­counseling score minus pre ­counseling score to be positive or negative? Explain your answer. 4 State the null and alternative hypotheses. 5 Is this a right ­tailed, left ­tailed, or two ­tailed test? Step 2: Collect the Data 6 Are the criteria for approximate normality met for the sampling distribution of differences? 7 Determine the mean and standard deviation of the sampl...
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