Solution-Explain difference between two independent sample

Explain difference between two independent sample groups

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Reference no: EM131455768

Z-test, and T-test.

A z-test is used for testing the mean of a population versus a standard, or comparing the means of two populations, with large (n ≥ 30) samples whether you know the population standard deviation or not.

Z-tests can also be helpful when we want to test a hypothesis. Generally, they are most useful when the standard deviation is known.

T-tests are calculations used to test a hypothesis, but they are most useful when we need to determine if there is a statistically significant difference between two independent sample groups

T-tests are most appropriate when dealing with problems with a limited sample size (n < 30).

Reference no: EM131455768

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Explain difference between two independent sample groups

Reference no: EM131455768

Reference no: EM131455768

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