Answer Happy

Assume the number riders per day of the Green Line bus route is normally distributed with a mean u = 2330.74 and a standard deviation o = 17.22. Using proper notation to express them, determine the mean and standard deviation of the sampling distribution of the sample means for samples: (a) of size 40; (b) of size 80; (c) of size n=120. (d) Can you do this for samples of size n=20? If so, explain why and then describe the sampling distribution. If not, explain why. Now draw simple bell-shaped curves to depict the sampling distribution of the sample mean for each of the distributions in parts (a)-c). The drawings do not have to be exact, but tell me what should happen to the shape of the distribution as n increases.