Consider testing the equality of the means of two normal populations, where the variances are unknown but
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Consider testing the equality of the means of two normal populations, where the variances are unknown but are assumed to be equal. The appropriate test procedure is the pooled t-test. Show that the pooled t-test is equivalent to the single-factor analysis of variance.
3Σ.45 Show that the variance of the linear combination a i=1 ciyi. is σ2
Σa i=1 nic2i.
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