Hello, can someone please help me out with this :-( trying my best to understand.

You are designing a study that will use an independent t-test comparing males and females on a dependent variable. You find a study in the research literature that uses the same dependent variable and has a somewhat similar study design. The published study found an effect size of 0.70 for that outcome measure. From the information above and your knowledge of statistics answer the following questions:

a.What is the alpha-level for your study?

b.What is the beta-level for your study?

c.What is the minimum number of subjects per group that your study will need