Abstract
In all the examples we have been asked to ‘test the hypothesis that σ = σ0’ and to do this we have tested using the x2 distribution whether or not σ is significantly greater than OR significantly less than σ0, i.e. we have carried out a TWO-TAILED TEST. In fact we have tested the null hypothesis that σ= σ0 against the hypothesis that σ≠ σ0.
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© 1975 J. Hine and G. B. Wetherill
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Hine, J., Wetherill, G.B. (1975). One- and Two-Tailed Tests. In: A Programmed Text in Statistics Book 4: Tests on Variance and Regression. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-6509-9_2
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DOI: https://doi.org/10.1007/978-94-011-6509-9_2
Publisher Name: Springer, Dordrecht
Print ISBN: 978-0-412-13750-1
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