help please! is you could use excel for this, that would be great. thabk you so much!

The antibody production of 12 male red winged blackbirds before and after receiving testosterone implants was composed The units for antibody levels were natural log (10 optical denslyper minute (in(mOD min) The mean change in antibody production was de 0.056, and the standard deviation was 2,0 158 #you were assigned the task of repeating this experiment, and wanted to ensure that you could detect a mean change of 0.07 unts with a probability of 08, then what sample size would you use? Since we are calculating n for a study of individuals, answers should be rounded to the closest whole number