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A sample of 26 offshore oil workers took part in a simulated escape exercise, resulting in the accompanying data on time (sec) to complete the escape: 384 352 354 361 379 421 322 396 402 373 374 370 364 368 365 329 337 394 391 369 378 358 354 405 330 397 (a) Construct a stem-and-leaf display of the data. [Enter numbers from smallest to largest sepalated by spaces. Enter NONE for stems with no values.) Stems Leaves 32 33 34 35 35 37 3s 39 4o 41 42 How does it suggest that the sample mean and median will compare? The display is positively skewed, so the median will be greater than the mean. 0 The display is reasonably symmetric, so the mean and median will be close. 0 The display is negatively skewed, so the median will be greater than the mean. 0 The display is positively skewed, so the mean will be greater than the median. O The display is negatively skewed, so the mean will be greater than the median. (b) Calculate the values of the sample mean ; and median i. [Hint Ex; = 9627.] (Round your answers to two decimal places.) (c) By how much could the largest time, currently 421, be increased without affecting the value of the sample median? (Enter 00 if there is no limit to the amount.) w >