Mathematics, 20.11.2021 09:10, jaylon78

When testing the difference between two population means under independent sampling, we use the z distribution if . Question 4 options: the population variances are known the population variances are unknown, but assumed to be equal the population variances are unknown and cannot be assumed equal Both the population variances are known and the population variances are unknown, but assumed to be equal

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When testing the difference between two population means under independent sampling, we use the z di...