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Explain when to use the z-test instead of t-test

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Reference no: EM131705723

Assignment

1. Describe t-test and explain how to interpret its results?
2. Explain when to use the z-test instead of t-test?
3. Discuss the differences between parametric and non-parametric tests?
4. Explain how the Wilcoxon Sign Test is conducted?

Reference no: EM131705723

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