In: Statistics and Probability
The fasting blood glucose (FBG) levels of a population of women is thought to have a standard deviation of 0.75 mmol/l. A study is being designed to determine whether FBG levels are increased in women who have taken oral contraceptive for at least 6 months. How large a sample is required to detect 0.50 mmol/l if alpha = 0.05 and the power is 0.95?