# A researcher selects a sample from a population with µ. = 45 and σ = 8. A treatment is administered to the sample and. after treatment, the sample mean is found to be M = 47. Compute Cohen’s d to measure the size of the treatment effect.

### Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
Publisher: Cengage Learning
ISBN: 9781133956570

### Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
Publisher: Cengage Learning
ISBN: 9781133956570

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Chapter 8.5, Problem 2LC
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