Can a six-month exercise program increase the total body bonemineral content (TBBMC) of young women?
That is, we are interested in determining if the exercise programis beneficial, i.e., the mean percent change is positive.
Assume a sample of 25 subjects is taken.
A team of researchers is planning a study to examine thisquestion.
Based on the results, they are willing to assume that ? = 2 for thepercent change in TBBMC over the six- month period.
They also believe that a change in TBBMC of 1% is important, sothey would like to have a reasonable chance of detecting a changethis large or larger.
Calculate the power of this test.
