Plasma-glucose levels are used to determine the presence of diabetes. Suppose the mean ln (plasma-glucose) concentration(mg/dL
) in 35- to 44-year-olds is 4.86 with standard deviation = 0.54. A study of sedentary people is planned to test whether they have a different, i.e., a two-tailed test, level of plasma-glucose than the general population. The study will test significance at the 0.05 level. One study indicated that that the mean for the sedentary group will be about 4.96 mg/dL. How many sedentary people are needed in the study to achieve 80% power?
3 boxes of computer diskettes at $8.99 per box = (3 * 8.99 = 26.97 ) 2 packages of pens at $ 2.50 per package = (2 * 2.50 = 5.00 ) 6 boxes of paper at $ 22.95 per box = (6 * 22.95 = 137.70) 1 printer ribbon at $25 each. = (1 * 25 = 25) Add up (26.97+5.00+137.70+25 ) and the answer is = 194.67
