Answered: A Deputy Registrar (Human resources) at…

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

A Deputy Registrar (Human resources) at a certain University is concerned about employee absenteeism among academic staff. She believes that organisation commitment is probably the most significant contributing factor. She selected a random sample of 31 employee files and noted their level of absenteeism (in days p.a.). She sent a confidential questionnaire to each of the selected employees from which an organisation commitment index was derived.’. using the data set below You are required to do the following:

1.2 For both groups of academics (those with ‘low’ absenteeism and those with ‘high’ absenteeism), obtain the following descriptive statistics pertaining to their level of organisation commitment: mean, median, standard deviation, range, minimum and maximum values.

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Question One
1.2
Descriptives
MBAZ504 Assignment 2 -Additional Information (Prof. William Phiri Abwino -Course
Lecturer)
N
Missing
Mean
Median
Standard deviation
Range
Minimum
Maximum
LAbsence
low
high
low
high
low
high
low
high
low
high
low
high
low
high
low
high
Commitment
9
22
0
0
70.1
44.2
70
42.5
8.34
12.7
24
50
0
58
19
82
69
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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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