For a specific known population, the mean is 100 and variance is 25. A researcher conducts a study in which 10 participants are exposed to experimental procedure. To test the hypothesis that population these 10 participants represent is different from known population, the comparison distribution's mean and variance would be:
Pick one answer.
a, mean=10, variance=5
b, mean=100, variance=2.5
c, mean=100, variance=5