1. Plot the following data as back-to-back stemplots on a common stem. Then, compare group locations and spreads. Group 1: 90 70 5 0 30 10 Group 2: 70 60 5 0 40 30 2. A new cancer treatment uses genetically engineered white blood cells to recognize and destroy cancer cells. Counts of activated immune cells in 11 patients are as follows: {27, 7, 0, 215, 20, 700, 13, 510, 34, 86, 108}. Make a stemplot of the data. Describe the distribution's shape, central location, and spread. 3. Name three general characteristics of distributions. 4. What is the five-point summary and IQR of the following data set? {1.47 2.06 2.36 3.43 3.74 3.78 3.94} 5. A study by Morgan and coworkers used genetically modified white blood cells to treat patients with melanoma who had not responded to standard treatments. In patients in whom the cells were cultured ex vivo for an extended period of time (cohort 1), the cell doubling times were {8.7, 11.9, 10.0} days. In a second group of patients in whom the cells were cultured a shorter period of time (cohort 2), the cell doubling times were {1.4, 1.0, 1.3, 1.0, 1.3, 2.0, 0.6, 0.8, 0.7, 0.9, 1.9} days. In a third group of patients (cohort 3), actively dividing cells were generated by performing a second rapid expansion via active cell transfer. Cell doubling times for cohort 3 were {0.9, 3.3, 1.2, 1.1} days. Calculate the mean and standard deviation within each group. 6. The following stemplot has 18 observations. Prove that the value 152 in this data set is an outside value. 08 | 8 09 | 59 10 | 0147 11 | 444679 12 | 0145 13 | 14 | 15 | 2 x10