5. For this study, approximately how many of the children in the DM group had [ Select ] improvement scores between 9 and 11 points? 30 10
5. For this study, approximately how many of the children in the DM group had [ Select ] improvement scores between 9 and 11 points? 30 10
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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Transcribed Image Text:Pediatric researchers carried out a study on various options for treating a child's cough. A
sample of 120 children who were ill with an upper respiratory tract infection and their
parents participated in the study. On the first day, a total symptoms score in points was
measured for each child (higher indicating worse symptoms). That night 40 randomly
selected children received dextromethorphan (DM, over-the-counter cough medicine),
another 40 randomly selected children received a dosage of honey, and the remaining 40
were given no dosage at all. On the second day, the total symptoms score in points was
measured again for each child and the improvement score was computed (improvement
%3D
day 1 score - day 2 score).
1. This study is
an experiment
2. For this study, the variable improvement score is
a quantitative response variab v
Boxplots of Improvement Scores by Group
Improvement Score
15
![5. For this study, approximately how many of the children in the DM group had
[ Select ]
improvement scores between 9 and 11 points? 30
10
20](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F10de40d4-0dd7-45fd-9d14-c5a48cbfeb71%2F96931000-ca62-4b8c-9aed-dbf08f8184df%2F2oe76i_processed.png&w=3840&q=75)
Transcribed Image Text:5. For this study, approximately how many of the children in the DM group had
[ Select ]
improvement scores between 9 and 11 points? 30
10
20
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