In a planned study, there is a known population with a normal distribution, = 15, and

Question:

In a planned study, there is a known population with a normal distribution, μ = 15, and σ = 2. What is the predicted mean if the researcher predicts
(a) A small positive effect size.
(b) A medium negative effect size.
(c) A large positive effect size.
(d) An effect size of d = .35.
(e) An effect size of d = -1.50?