A data manager in a doctor's office was interested in analyzing the LDL cholesterol levels for the 30 patients who were on medication for moderately high or high levels. These measures (mg/dL) in sorted order are: 130 132 134 135 140 145 150 150 150 154 156 159 160 160 168 172 180 180 180 182 183 184 186 197 203 212 215 215 215 220 The median value is The 80th percentile value is DO NOT ROUND YOUR ANSWERS! The data manager in the prior problem also used large data resources to determine that, in the general public, the mean LDL cholesterol value is 155 with a standard deviation of 35. An LDL value would be considered significantly high if it is or higher. Enter a whole number. 7 A certain surgical procedure usually requires some days in a rehabilitation facility after discharge from the hospital. Last month a hospital had seven such patients who averaged 4 days of rehabilitation. Letting x; represent the number rehabilitation days for the ith patient, you're also given X = 140. i=1 The standard deviation for the length of rehabilitation for these patients is Round your answer to two digits beyond the decimal as needed.