A Sample Is Selected from a Population with μ =

question 70

Multiple Choice

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 sample variance of s² = 16.Based on this information,what is the value of 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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