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Anxiety Reduction Through Counseling: Paired Differences Hypothesis Testing

Dive into hypothesis testing involving paired samples to determine if counseling sessions reduce anxiety. Understand the test statistic t, mean, standard deviation, and interpret results.

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Anxiety Reduction Through Counseling: Paired Differences Hypothesis Testing

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  1. Chapter 9: Hypothesis Testing Section 6: Testing Involving Paired Differences (Dependent Samples)

  2. Test Statistic t = • is the mean of the d values • is the standard deviation of the d values • n is the number of data pairs • df = n – 1

  3. Example • From the given data, can we conclude that the counseling sessions reduce anxiety?

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