glandand normal table A new energy drink is supposed to improve a person's time in the one mile run. without the drink are given below: Runner time (before) 260 273 266 265 261 247 268 271 y time (after) 263 270 280 279 266 242 263 259 Find the 98 % confidence interval for mean of the differences, ud. Answer the following questions: Multiple choice: Which equation would you use to solve this problem? (21 - 72) - 17 -+