The following record shows the additional hours of sleep by 8 patients due to two trial drugs administered after a safe interval Patient 1 2 3 4 5 6 7 8 no. Drug A 1.5 2.0 1.7 2.5 1.6 2.0 2.2 3.2 Drug B 2.0 3.1 2.1 2.0 1.8 1.9 2.1 3.5 Examine weather drugs differ in their effects [8 Marks] CO 1, 2 & 3
