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. Here is a stem-and-leaf display of escape time data. stem leaf 32 55 33 49 34 35 6699 36 34469 37 03345 38 7 39 2347 40 23 41 42 8 (a) Determine the value of the fourth spread. (b) Are there any outliers in the sample? Any extreme outliers? O There are no extreme outliers but several outliers. O There are several extreme outliers. O There is one extreme outlier and one outlier. O There are no outliers or extreme outliers. O There is one extreme outlier and several outliers. (c) Construct a boxplot. D + · ·H Escape Escape time 320 340 360 380 400 420 time 320 340 (sec) O 360 380 400 420 320 340 360 380 (sec) O O Comment on its features. O The distribution is roughly symmetric with no outliers. O The distribution is roughly bimodal with no outliers. O The distribution is roughly symmetric with several outliers. O The distribution is positively skewed with several outliers. O The distribution is negatively skewed with several outliers. 360 380 400 420 Escape time 320 340 (sec) O H 420 400 Escape time (sec)
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. Here is a stem-and-leaf display of escape time data. stem leaf 32 55 33 49 34 35 6699 36 34469 37 03345 38 7 39 2347 40 23 41 42 8 (a) Determine the value of the fourth spread. (b) Are there any outliers in the sample? Any extreme outliers? O There are no extreme outliers but several outliers. O There are several extreme outliers. O There is one extreme outlier and one outlier. O There are no outliers or extreme outliers. O There is one extreme outlier and several outliers. (c) Construct a boxplot. D + · ·H Escape Escape time 320 340 360 380 400 420 time 320 340 (sec) O 360 380 400 420 320 340 360 380 (sec) O O Comment on its features. O The distribution is roughly symmetric with no outliers. O The distribution is roughly bimodal with no outliers. O The distribution is roughly symmetric with several outliers. O The distribution is positively skewed with several outliers. O The distribution is negatively skewed with several outliers. 360 380 400 420 Escape time 320 340 (sec) O H 420 400 Escape time (sec)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
PQ8
Transcribed Image Text: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. Here is a stem-and-leaf display of escape time data.
stem leaf
32 55
33 49
34
35 6699
36 34469
37 03345
38 7
39 2347
40
23
41
42 8
(a) Determine the value of the fourth spread.
(b) Are there any outliers in the sample? Any extreme outliers?
O There are no extreme outliers but several outliers.
O There are several extreme outliers.
O There is one extreme outlier and one outlier.
O There are no outliers or extreme outliers.
O There is one extreme outlier and several outliers.
(c) Construct a boxplot.
D
Escape
320 340
360
380
400 420
time
320 340
(sec) O
O
Comment on its features.
O The distribution is roughly symmetric with no outliers.
O The distribution is roughly bimodal with no outliers.
O The distribution is roughly symmetric with several outliers.
O The distribution is positively skewed with several outliers.
O The distribution is negatively skewed with several outliers.
360
380
400 420
Escape
time
320 340
(sec) O
360 380
400
420
Escape
time
(sec) O
I H
400 420
320 340 360 380
Escape
time
(sec)
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