In a trial of new drug X against a standard drug Y for the treatment of depression, the new drug caused improvement in 56% of 73 patients and the standard drug showed improvement in 41% of 70 patients. 1) Complete the 2 by 2 table below. (4 marks) CASES (Depressed) CONTROLS (Not Depressed) DRUG X (exposed) DRUG X (unexposed) 2) Identify and classify the level of measurements of the dependent and independent variables. (4 marks) 3) Construct a null and alternative bypothesis for this clinical trial (2 marks) 4) Formulate an analysis plan. (2 marks) (4 marks​