Part 1: Exploratory analysis [4|] marks] All students should attempt this question The hospital manager you have been asked to help faces a difficulty. Although 0- blood is universal, in the sense that it can be used safely with virtually all patents, it is also in short supply. Table 1 indicates that only around T96 ofthe UK population is O- and, by implication, only around TH: of blood donations will be 0-. The manager would prefer medical staff to be using appropriately matched blood wherever possible and restricting the use of 0- blood to those patients who really need it: those patients who are actually 0- (since from Table 3 there are no other compatible blood types] and those patients who require emergency blood transfusion {where there is no time to check their blood type). On the other hand, the manager does not want donated blood to be wasted, which can happen if blood is not used within its shelf life {each unit of blood is marked with an expiry date}. As a result, she has carried out some data collection in the hospital over the last six months. A record has been kept of every patient who received 0- blood during that period. The following data has been collected on each patient {and is available in the accompanying Excel file for this assignment}