The capacity for physical exercise (in seconds) was determined for 10 patients being treated for chronic heart failure.9061320711117068412008371056897882Compute the arithmetic mean.Compute the population standard deviation.Find the minimum, maximum, median, Q1, and Q3.Determine if any outliers exist. [Hint: Check if x ă Q1 ´ 1.5 ¨ IQR or if x ą Q3 ` 1.5 ¨ IQR]Using this information, construct a box & whisker plot. Use appropriate scaling!

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The capacity for physical exercise (in seconds) was determined for 10 patients being treated for chronic heart failure.

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Compute the arithmetic mean.
Compute the population standard deviation.
Find the minimum, maximum, median, Q1, and Q3.
Determine if any outliers exist. [Hint: Check if x ă Q₁´ 1.5 ¨ IQR or if x ą Q₃` 1.5 ¨ IQR]

Using this information, construct a box & whisker plot. Use appropriate scaling!

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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