Detector signal (in mV)
Spiked ASA concentration (in mg/L)	Method 1 (35 C)	Method 2 (45 C)
0.25	20	18	21	25	23	28
0.5	33	31	32	41	38	39
1.0	44	48	45	91	87	95
2.0	71	75	73	136	145	139
4.0	125	119	131	181	172	175

1. Test the hypothesis that the two slopes are not significantly different from each other. In order to do so, consider that the each of the slopes is a variable that has a mean and a standard deviation - you can use a test that has been discussed in former modules to compare the two slopes with each other.