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Explorations in statistics: hypothesis tests and P values

Douglas Curran-Everett1

  • 1National Jewish Health, Department of Biostatistics and Informatics, University of Colorado Denver, USA. EverettD@NJHealth.org

Advances in Physiology Education
|June 11, 2009
PubMed

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The process of hypothesis testing based on the P-value method includes calculating the P- value using the sample data and interpreting it.
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The process of hypothesis testing based on the traditional method includes calculating the critical value, testing the value of the test statistic using the sample data, and interpreting these values.
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A hypothesis can be a simple sentence or statement about a property or any phenomenon observed or predicted for a population. It is usually a claim about a  property of the population. It can be stated for any field observations or experiments. A hypothesis statement cannot be said to be right or wrong as it is merely a statement. It needs to be tested through an elaborate data collection process and an appropriate statistical test. A hypothesis should be a general but not a vague statement. It...
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P-value is one of the most crucial concepts in statistics.
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