(a) (b) n. a a. J. You learned that 42(X) : pt. Is this statement true only when n. is sufficiently large? In other words, does the size of the sample, from which X is calculated, have an effect on the mean of all possible sample means calculated from samples of the same size? Explain your answer briey. You also learned that V (Y) = (7). Does this mean that the size of the sample n. .,_ affects the variability of 317? If so, how? Finally, you learned that the distribution of X is approximately normal, even when you are sampling from a non-normal population. Is this statement true for any sample size n? Explain your