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Mathematical Methods for Physics and Engineering - Matematica.NET

Mathematical Methods for Physics and Engineering - Matematica.NET

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31.7 HYPOTHESIS TESTINGP (t|H 0 )αt crittP (t|H 1 )βt crittFigure 31.10 The sampling distributions P (t|H 0 )<strong>and</strong>P (t|H 1 ) of a test statistict. The shaded areas indicate the (one-tailed) regions <strong>for</strong> which Pr(t >t crit |H 0 )=α <strong>and</strong> Pr(t t crit |H 0 )= P (t|H 0 ) dt = α; (31.106)t critthis is indicated by the shaded region in the upper half of figure 31.10. Equally,a (one-tailed) rejection region could consist of values of t less than some valuet crit . Alternatively, one could define a (two-tailed) rejection region by two valuest 1 <strong>and</strong> t 2 such that Pr(t 1

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