Abstract
As an example, the mean decrease in blood pressure after treatment is calculated with the accompanying p-value. A p-value <0.05 indicates that there is less than 5% probability that such a decrease will be observed purely by the play of chance. There is, thus, >95% chance that the decrease is the result of a real blood pressure lowering effect of the treatment. We call such a decrease statistically significant.
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© 2011 Springer Science+Business Media B.V.
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Cleophas, T.J., Zwinderman, A.H. (2011). t-Tests. In: Statistical Analysis of Clinical Data on a Pocket Calculator. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-1211-9_3
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DOI: https://doi.org/10.1007/978-94-007-1211-9_3
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Print ISBN: 978-94-007-1210-2
Online ISBN: 978-94-007-1211-9
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