I have included the compromise but am struggling with the part that is highlighted and bolded.

Assume that the result is a sample size beyond what you can obtain. Use the compromise function to compute alpha and beta for a sample approximately half the size. Give your rationale for your selected beta/alpha ratio. Indicate the resulting alpha and beta. Give an argument that your study is worth doing with the smaller sample.

t tests - Correlation: Point biserial model

Analysis: Compromise: Compute implied & power

Input: Tail(s) = One

Effect size || = 0.1

/ ratio = 1

Total sample size = 33

Output: Noncentrality parameter = 0.5773503

Critical t = 0.2910132

Df = 31

err prob = 0.3864897

err prob = 0.3864897

Power (1- err prob) = 0.6135103