Can you help me solve it?

a) To investigate the effect of amphetamines on water consumption, 15 lab rats were injected with amphetamine and 10 with saline solution. The water consumed by each rat in ml/kg of body weight was recorded and the results are summarized in the following Table 1; Table 1 Jadual 1 -.m- M deviation Test the hypothesis between two difference means. i. State the null and alternative hyphothesis. (2 marks) ii. Identify the type I error and type II error that correspond to the hyphotheses above. (4 marks) iii. Test the claim at 5% level of significance. (9 marks)