46. The article "Effects Short-Term Warming on Low High Latitude Forest Ant Communities" (Ecoshpere. May 2011, Article 62) described an experiment in which observations on various characteristics were made using minichambers of three different types: (1) cooler (PVC frames covered with shade cloth), (2) control (PVC frames only), and (3) warmer (PVC frames covered with plastic). One of the article's authors kindly supplied the accompany- ing data on the difference between air and soil temperatures (C). Cooler Control Warmer 1.59 1.92 2.57 1.43 2.00 2.60 1.88 2.19 1.93 1.26 1.12 1.58 1.91 1.78 2.30 1.86 1.84 0.84 1.90 2.45 2.65 1.57 2.03 0.12 1.79 1.52 2.74 1.72 0.53 2.53 2.41 1.90 2,13 2.34 2.86 0.83 2.31 1.34 1.91 1.76 a. Compare measures of center for the three different samples. b. Calculate, interpret, and compare the standard devia- tions for the three different samples. c. Do the fourth spreads for the three samples convey the same message as do the standard deviations about relative variability? d. Construct a comparative boxplot (which was includ- ed in the cited article) and comment on any interest- ing features.