A researcher is evaluating the influence of a treatment using a sample selected from a normally distributed population. The population has a mean of μ = 40 and a standard deviation of a = 4.2. For the following sample, report Cohen's d and whether the magnitude of the effect is small, medium, or large based on the benchmarks we have learned in class. X = [30, 40, 35, 60, 25]

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A researcher is evaluating the influence of a treatment using a sample selected from
a normally distributed population. The population has a mean of μ = 40 and a
standard deviation of a = 4.2. For the following sample, report Cohen's d and
whether the magnitude of the effect is small, medium, or large based on the
benchmarks we have learned in class.
X = [30, 40, 35, 60, 25]
1.06, large
0.48, medium
1.06, medium
0.48, large
Transcribed Image Text:A researcher is evaluating the influence of a treatment using a sample selected from a normally distributed population. The population has a mean of μ = 40 and a standard deviation of a = 4.2. For the following sample, report Cohen's d and whether the magnitude of the effect is small, medium, or large based on the benchmarks we have learned in class. X = [30, 40, 35, 60, 25] 1.06, large 0.48, medium 1.06, medium 0.48, large
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