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What is Chi-Square Test

Chapter 58
Encyclopedia of Business Analytics and Optimization
One of the most commonly used tests for goodness of fit of empirical data to specified theoretical frequency distribution. This test makes a comparison between the actual number of observations and the expected number of observations that falls in the class intervals.
Published in Chapter:
Data Mining through Modelling in Irrigation Commands
Pradeep Kumar Majumdar (Adama Science and Technology University, Ethiopia)
Copyright: © 2014 |Pages: 18
DOI: 10.4018/978-1-4666-5202-6.ch058
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Chapter 39
Machine Learning and Exploratory Data Analysis in Cross-Sell Insurance
Chi-square statistic is a kind of statistical filter method that can be used to assess the correlation between different features using their frequency distribution. It is a number that tells us, how much difference exists between observed counts and expected counts (in case of no relationship at all in the population).
Published in Chapter: Machine Learning and Exploratory Data Analysis in Cross-Sell Insurance; From: Encyclopedia of Data Science and Machine Learning
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Chapter 1
User Profiling Using Keystroke Dynamics and Rotation Forest
The procedure used to examine the differences between categorical variables.
Published in Chapter: User Profiling Using Keystroke Dynamics and Rotation Forest; From: Applications of Machine Learning and Deep Learning for Privacy and Cybersecurity
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Chapter 39
Widely Usable User Interfaces on Mobile Devices with RFID
The Chi-square is a test of statistical significance for bivariate tabular analysis (crossbreaks). This test provides the degree of confidence we can have in accepting or rejecting a hypothesis.
Published in Chapter: Widely Usable User Interfaces on Mobile Devices with RFID; From: Handbook of Research on User Interface Design and Evaluation for Mobile Technology
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Chapter 18
Impact of Local Self-Government Institutions on Creating a Business-Friendly Environment: Multi-Criteria Analysis
Well known statistical procedure that refers both to a statistical distribution and to a hypothesis testing procedure that produces a statistic that is approximately distributed as the chi-square distribution.
Published in Chapter: Impact of Local Self-Government Institutions on Creating a Business-Friendly Environment: Multi-Criteria Analysis; From: Handbook of Research on Democratic Strategies and Citizen-Centered E-Government Services
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Chapter 28
Virtual Interactions in Distance Learning
The chi-square test is used to determine whether there is a significant difference between the expected frequencies and the observed frequencies in one or more categories.
Published in Chapter: Virtual Interactions in Distance Learning; From: Handbook of Research on Practices and Outcomes in Virtual Worlds and Environments
Full Text Chapter Download: US $37.50 Add to Cart
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