A sample is selected from a population with μ = 46, and a treatment is administered to the sample. After treatment, the sample mean is M = 48 with a population standard deviation  = 4. Based on this information, what is the value of estimated Cohen’s d? a.           d = 0.125 b.           d = 0.25 c.           d = 0.50 d.           Cohen’s d cannot be computed without knowing the sample size.

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A sample is selected from a population with μ = 46, and a treatment is administered to the sample. After treatment, the sample mean is M = 48 with a population standard deviation  = 4. Based on this information, what is the value of estimated Cohen’s d?

a.           d = 0.125

b.           d = 0.25

c.           d = 0.50

d.           Cohen’s d cannot be computed without knowing the sample size.

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