T-test: Comparing the means of two samples (adapted from Miller, J.C. and Miller, J.N. Statistics for Analytical Chemistry, 2nd Ed., pg.54)
The determination of lead in blood was performed by two methods on the same sample. Below are the following results (µg Pb/L):
Anodic Stripping Voltammetry: 23.1, 23.5, 23.6
Atomic Absorption Spectroscopy: 22.7, 23.1, 22.5
Q: Do these two methods differ in their results at the 95% confidence level?