Question

The antibody production of 12 male red-winged blackbirds before and after receiving testosterone implants was compared. The units for antibody levels were natural log (10-3 optical density) per minute (In(mOD/min)). The mean change in antibody production was d = 0.056, and the standard deviation was so = 0.31 If you were assigned the task of repeating this experiment, and wanted to ensure that you could detect a mean change of 0.05 units with a probability of 0.8, then what sample size would you use? Since we are calculating n for a study of individuals, answers should be rounded up to the next whole number.

Answer 1

solution's I -0.056 왼2031 I mean Change= 0.05 probability =0.8 2012o ㅌ 901. x- 100-C) - - Moof. go -0、20, 제2 드2를 Zoe - 128 1.28 , =O5 2 no (28 0 3) - 6298. ) 다. OOS 63