The scores of students on the ACT college entrance examination in a recent year had the normal distribution with mean u = 18.6 and standard deviation 0 = 4.9. A large number of samples of 50 individuals each are selected and ; is computed for each sample. Use the Central Limit Theorem to determine the following the mean and standard deviation of the sampling distribution. 0 mean 18.6, standard deviation 0.69 C mean 18.6, standard deviation 4.9 0 mean 2.63, standard deviation 0.69 0 mean 2.63, standard deviation 4.9