In the article “Evaluation of Low-Temperature Properties of HMA Mixtures”, the following values of fracture stress (in megapascals) were measured for a sample of 24 mixtures of hot-mixed asphalt (HMA).   30 75 79 80 80 105 126 138 149 179 179 191 223 232 232 236 240 242 245 247 254 274 384 470   a)      Compute the mean, median and 10% trimmed mean. b)      Construct a boxplot for the asphalt data. c)      Which values, if any, are outliers? d)     Construct a dot plot for the asphalt data.

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