The density of cyclohexanewas determined by weighing 1 mL of the liquid at roomtemperature. The sample was delivered using a volumetricpipet (+/- 0.006 mL) into a beaker that was weighed on a scaleaccurate to 2 mg. The data from the five runs aregiven:
Dry mass: 149.237,149.240, 149.238, 149.242, 149.231
Final mass:150.019, 150.020, 150.019, 150.017, 150.021
Calculate the best extimate of the density and 95% Confidence level. How does the calculation of uncertainty compare with the expected experimental uncertainty based on propagation of errors?