A sample of 26 offshore oil workers took part in a simulated escape exercise, resulting in the accompanying data on time

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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 1 (37.45 KiB) Viewed 35 times

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: 383 350 355 360 379 421 324 397 400 365 326 336 394 34 (a) Construct a stem-and-leaf display of the data. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.) Stems Leaves 32 33 35 36 37 38 39 40 41 42 373 375 375 370 370 363 368 365 326 392 369 377 358 354 408 332 398 How does it suggest that the sample mean and median will compare? O 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. O The display is positively skewed, so the median will be greater than the mean. O The display is negatively skewed, so the median will be greater than O The display is reasonably symmetric, so the mean and median will be close. x = X = mean. (b) Calculate the values of the sample mean x and median X. [Hint: Ex, = 9627.] (Round your answers to two decimal places.) sec sec (c) By how much could the largest time, currently 421, be increased without affecting the value of the sample median? (Enter ∞o if there is no limit to the amount.) By how much could this value be decreased without affecting the value of the sample median? (Enter ∞ if there is no limit to the amount.) (d) What are the values of X and X when the observations are reexpressed in minutes? (Round your answers to two decimal places.) x= min min