The table below shows five baskets containing different quantities of oranges.
(Baskets) Number of oranges (1) 30 (2) 18 (3) 30 (4) 33 (5) 36
(a) List all samples of size 2, and compute the mean of each sample.
(b) Compute the mean of the distribution of the sample mean and the population mean. Compare the two values.
(c) Compare the dispersion in the population with that of the sample mean.