Answer to Question #73148 in General Chemistry for ggg

Question

Asssume you perform an experiment where you measure the Volume of an unknown material 9 times on different days. The volumes measured are 14.76 mL, 14.48 mL, 14.55 mL, 15.73 mL, 14.75 mL, 14.70 mL , 14.81 mL, 14.73 mL, and 14.69 mL

Answer 1

Solution:
The average volume of all nine measurements is (note throw out any outlier, if justified, with 90% confidence)
V = (14.76 mL + 14.48 mL + 14.55 mL + 14.75 mL + 14.70 mL + 14.81 mL+ 14.73 mL + 14.69 mL)/8 = 14.68 mL