Drug content assessment. Analytical Chemistry (Dec. 15, 2009) presented research...

Drug content assessment. Analytical Chemistry (Dec. 15, 2009) presented research on a new method used by GlaxoSmithKline Medicines Research Center to determine the amount of drug in a tablet. Drug concentrations (measured as a percentage) for 50 randomly selected tablets are provided in the accompanying table. The standard method of assessing drug content yields a concentration variance of 9. Can the scientists at GlaxoSmithKline conclude that the new method of determining drug concentration is less variable than the standard method? Test using α= .01.