A fishery biologist wanted to compare the mean level of mercury concentration (ppm) and body weight (kg) between two fish species - bass and pike caught from Mississippi River during the summer of 2014. It was assumed that the probability of catch is not affected by the size and level of mercury content. Conduct a statistical test that is most appropriate to test the hypotheses whether there is difference in mercury content and also the body weight between two species of fish (assume data are normally distributed). Could you please show me how to manually calculate the tests?

Species	Mercury	Weight
Bass	0.23	0.5
Bass	0.33	0.4
Bass	0.4	0.6
Bass	0.44	0.5
Bass	0.2	0.8
Bass	0.27	0.5
Bass	0.48	1
Bass	0.19	0.8
Bass	0.53	0.7
Bass	0.51	0.6
Bass	0.71	0.5
Bass	0.5	0.9
Bass	0.49	1.2
Bass	0.4	1
Bass	0.2	1
Bass	0.3	1.2
Bass	0.25	0.9
Bass	0.77	0.8
Bass	0.4	0.9
Bass	0.5	1
Bass	0.63	0.6
Bass	0.56	0.5
Bass	0.41	0.7
Bass	0.73	0.8
Pike	0.34	0.6
Pike	0.15	0.4
Pike	0.34	1
Pike	0.34	1.1
Pike	0.5	1.2
Pike	0.34	1.2
Pike	0.28	1
Pike	0.54	1.2
Pike	0.67	0.6
Pike	0.56	0.8
Pike	0.3	0.8
Pike	0.38	0.9
Pike	0.45	0.7
Pike	0.2	0.9
Pike	0.49	0.5
Pike	0.3	0.6
Pike	0.3	0.7
Pike	0.38	0.5
Pike	0.4	0.5
Pike	0.21	0.9
Pike	0.68	0.8
Pike	0.52	0.7
Pike	0.65	0.75
Pike	0.47	0.8
Pike	0.1	0.9
Pike	0.4	0.8
Pike	0.43	0.7
Pike	0.25	0.8
Pike	0.47	0.89