Need help with A, B, C

Glucose levels. People with diabetes must monitor and control their blood glucose level. The goal is to maintain "fasting plasma glucose" between about 90 and 130 milligrams per deciliter (mg/dl). A study planned to compare the effectiveness of group instruction versus individual instruction on dia- betes control. Here are the fasting plasma glucose levels for 18 diabetic patients who were given group instruction and 16 diabetic patients who were given individual instruction, five months after the end of instruction: 14 Group instruction 141 158 112 153 134 95 96 78 148 172 200 271 103 172 359 145 147 255 Individual instruction 128 195 188 158 227 198 163 164 159 128 283 226 223 221 220 160 a. Make one dotplot containing both data sets. Software produces comparative dotplots easily. For handmade graphs, create a dotplot with one horizontal axis but two parallel lines, one over the oth- er. Use one line to place the group instruction dots and the other line to place the individual in- struction dots. b. Describe the main features of each distribution. Are there any outliers? c. How well is each group, as a whole, achieving the goal of controlling glucose level? How do the two groups differ with respect to this goal