atment (delivery route of a artial cure (2), antibiotic ex is variable is categorical and patients falling into the five T
atment (delivery route of a artial cure (2), antibiotic ex is variable is categorical and patients falling into the five T
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
Transcribed Image Text:A study was conducted to compare oral and intravenous antibiotics in patients with
lower respiratory tract infection. Patients were rated in terms of their final outcome
after their assigned treatment (delivery route of antibiotic). The outcomes were
classified as: cure (1), partial cure (2), antibiotic extended (3), antibiotic changed (4),
death (5). Note that this variable is categorical and ordinal. For the oral delivery
group, the numbers of patients falling into the five outcome levels were: 74, 68, 16,
14, and 9, respectively. The following are some graphical summaries.
FREQUENCY
FREQUENCY of OUTCOME
80
70
60
50
40
30
20
10
0
1 2 3 4 5
OUTCOME
28
68
1
74
16
HA
14
9
What are the names of the two types of graphics and what data is each of them
displaying to us?
Expert Solution
Introduction
Here a study was conducted to compare oral and Intravenous antibiotics in patient
Patient were rated in terms of their final outcome after their assigned treatment.
The outcome was classified as
(1) cure , (2) partial cure , (3) antibiotic extended , (4) antibiotic changed , (5) death
the above variable is categorical and ordinal.
A variable with two or more categories is referred to be a categorical variable. Nominal and
ordinal categorical variables are the two different kinds. A nominal variable's categories do not have an inbuilt order.
For example, the categorical variable of blood type has four categories with no inherent
ordering.
The ordering of an ordinal variable is obvious. As an example of ordinal variable is, the ranking of high school students as a variable with numbered
categories (first, third, fourth, tenth, etc.).
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