Foam can be a particular challenge when fermenting yeast. Two years ago, you installed a foam control system on a fermenter used to culture Hansenula polymorpha, a type of yeast. The control system is based on automatic addition of an antifoam agent in response to rising foam levels. Your boss tells you that, since installation, the average consumption of antifoam agent per batch fermentation has been excessive at 2.9 L. You decide to check her assertion by measuring the volume of antifoam used in each of the next 10 fermentations over a period of three months. The results in liters are 1.4, 1.2, 4.1, 3.3, 2.6, 1.6, 1.4, 3.0, 2.0, and 1.1. Note that this data is not merely replicate readings of the same sample or a set of readings within a single batch, but 10 completely independent volume measurements. We could consider each value as the sample volume mean for each independent batch. Is 2.9 L a reasonable representation of the volume of antifoam consumed in this fermentation? Explain your answer.