Schema della sezione
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LECTURES N 16 (02 May2022) and N17 (04 May 2022) AULETTA 2 11am-1pm
One sample vs two sample tests MOTIVATION
General reference for this topic: Rosner’s chapter 8 and Whitlock’s chap. 12
Assumption of normality (see Whitlock chap.13)
Two samples (cross-sectional, synchronic studies) vs longitudinal paired tests (longitudinal, diachronic studies)
The paired t-test (R 8.2) [paired t-test statistic, acceptance region, p-value, interval estimation (R.8.3)]
Two sample test for independent samples with equal variances: acceptance region, p-value (R. 8.4), interval estimation (R.8.5)
Testing for the equality of variances (R section 8.6): the F distribution, The F-test
Two sample t test for independent samples with different variances (R. 8.7) (self study)
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