GGR270H1 Study Guide - Quiz Guide: Ctia And Gtia

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10 Dec 2010
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Used when the objective is to examine one sample and you are testing whether there is a significant difference between the sample and the population. If the sample is significantly different, then statistical inference allows the researcher to conclude that the sample is drawn from different population: hypotheses. H0: no significant difference between the mean of sample 1 and the population mean. Therefore, the sample is drawn from the same population. Ha: there is a significant difference between the mean of sample 1 and the population mean. Therefore, the sample is drawn from a different population: critical value. Use the z distribution if n> or = 30 and the t distribution if n<30. If ztest 84747 47 then reject h0. www. notesolution. com. Are mercury levels higher in drinking water in the gta than in the rest of the country as a whole? n = 250 sites in the gta.

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