What is the power of each of the following studies, using a t test

  
Practice the problem #8 pg. 270: What is the power of each of the following studies, using a t test for dependent means (based on the .05 significance level)? To complete this question review the chart located on #8 pg. 270. 
The chart is read as: 
Study Effect Size N Tails 
a) small 20 one 
b) medium 20 one 
c) medium 30 0ne 
d) medium 30 two 
e) large 30 two

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