f. Suppose the 31 trees in the trees data set is a random sample from those at a saw mill. The mill would like to use this sample to estimate the preportion of trees that they have at their mill with Volume over 65 cubic ft. Use the following code to determine what count of trees in this sample have Volume over 65 cubic ft. Then, explain why they should not do a largesample z confidence interval for the proportion of trees at their mill with Volume over 65 cubic feet with this sample of 31 trees. (Hint: Consider what assumption for our large sample Z confidence interval for :n: is not well met.) sum {trees3'd'olume>65}