Answered: Listed below, from left to right and…

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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Question

Listed below, from left to right and then top to bottom, are numbers of law enforcement fatalities for recent and consecutive years. First find the median, identify each value as being above the median or below the median, then test for randomness above and below the median using the runs test with a significance level of

α=0.05.

Is there a trend?

178	183	146	159	160	158	163	181	153	182
163	153	159	226	154	153	158	181	155	222

The median is

enter your response here.

(Type an integer or a decimal. Do not round.)

Determine the test statistic.

enter your response here

(Type an integer or decimal rounded to two decimal places as needed.)

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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