Question TwoIt can be said that some professions/jobs come with more stress. This stress issometimes carried over into family life, so much so that things can become unbearableat home. A researcher who is interested in such an issue decided to collect data on thelevel of rage/edginess towards family members. Perticipants were asked to rank thelevel of hostility they think they have been exerting towards family members due to theirjob. The resulting data is presented below.*11 is the highest level of hastility.Level of hostilityNumber of professionals0-123114-5B.6-7208-92510-1112a. Calculate the following:i.meanil.modeil,standard deviationiv. coefficient of variationv. Pearson's 1st measure of skewnessb.interpret the results of your calculationa in part a.The end :)

(i) To find mean: Level of hostility Number of professionals, fi Mid value, xi fixi 0 to 1 4…

Answered: Question Two It can be said that some…

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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Step 1

(i)

To find mean:

Level of hostility	Number of professionals, $f_{i}$	Mid value, $x_{i}$	$f_{i} x_{i}$
0 to 1	4	0.5	2
2 to 3	11	2.5	27.5
4 to 5	8	4.5	36
6 to 7	20	6.5	130
8 to 9	25	8.5	212.5
10 to 11	12	10.5	126
Total	80		534

$\begin{array}{rcl} x & = & \frac{\sum_{i = 1}^{n} f_{i} x_{i}}{\sum_{i = 1}^{n} f_{i}} \\ = & 6.675 \end{array}$

Interpretation: Here, the mean value, 6.675 describes the center of the data.

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