The tensile strength of silicone rubber is thought to be a function of curing temperature. A study was carried out in which samples of 12 specimens of the rubber were prepared using curing temperatures of 20C and 45C. The data below show the tensile strength values in megapascals. 20C: 2.07 2.14 2.22 2.03 2.21 2.03 2.05 2.18 2.09 2.14 2.11 2.02 45C: 2.52 2.15 2.49 2.03 2.37 2.05 1.99 2.42 2.08 2.42 2.29 2.01 (a) Compute sample mean tensile strength for both samples. (b) Does it appear as if curing temperature has an influence on tensile strength, based on the plot? Comment further. (c) Does anything else appear to be influenced by an increase in curing temperature? Explain