Question: A random sample is obtained from a population with a mean of \(\mu =100\), and the treatment is administered to the sample. After treatment, the sample variance is \({{s}^{2}}=400\) and the sample mean is M = 104

(a) Assuming the sample contained n = 16 individuals measure the size of the treatment effect by computing the estimated d and r².

(b) Assuming the sample contained n = 25 individuals measure the size of the treatment effect by computing the estimated d and r².

(c) Comparing your answers from parts (a) and (b) how does the sample size influence measures of effect size?