Construct a two-way table in R of frequency counts with cap.shape as the row variable and class as the column variable. Report it here and use it for the parts that follow. (a) If mushrooms with "bell" and "flat" cap shapes are to be compared with "bell" viewed as the baseline, calculate and interpret the relative risk for being of the "poisonous" class. Add 95% confidence limits. (b) If now all four cap shapes are considered, carry out an appropriate test for whether an association exists. In other words, does knowing something about the mushroom's cap shape tell us anything about its class as "edible" or "poisonous" You may use 0.05 for the level of significance