The probability of a mean less than 8.75, p(M < 8.75), in the previous problem having a sample of n = 16 was different than the probability of a mean less than 8.75, p(M < 8.75), in the previous problem having a sample of n = 4. Why was that probability different? a) The distribution of sample means for the sample size n = 16 was much narrower with a smaller standard error, making a mean of 8.75 or lower much less likely. b) The distribution of sample means for the sample size n = 4 was much broader with a larger standard error, making a mean of 8.75 or lower more likely. Oc) both of the above