September 2011
Beginner
472 pages
16h 30m
English
Content preview from Research in Education and PsychologyBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Inferential Data Analysis
Inferential statistical data analysis always involves the process of sampling and the selection of a small group that is assumed to be related to the population from which it is drawn. The small group is known as the sample, and the large group is known as the population. Drawing conclusions about populations based on observations of samples is the purpose of inferential analysis.
Parametric Treatment of Data
Parametric tests the most powerful tests for testing the significance or trustworthiness of the computed sample statistics and are very useful. Their use is based on certain assumptions. These tests should be used for the following:
- When the variables described are expressed in interval or ratio scales and not ...
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