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 (ln(mod/ the mean change in antibody production was d = 0.056, and the standard deviation was sd = 0.148 if you were assigned the task of repeating this experiment, and wanted to ensure that you could detect a mean change of 0.03 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.

I you want to ensure that you could detect a mean change of 0.03 units with a probability of 0.8, then you need at least 40 individuals for the sample.

Step-by-step explanation:

Minimum required sample size can be found using the formula

N≥ where

Using the numbers we get:

N≥ ≈ 40

34

step-by-step explanation:

step-by-step explanation:

assume that you have 3 different side lengths.   apply the pythagorean theorem here:   square each of the two shortest sides; call them a and b, so that their squares are a² and b².   also square the longest side, calling the result c².

now, if a² + b² = c² is true, the triangle is a right triangle; otherwise it is not a right triangle.