Mathematics, 26.05.2021 04:40 la200564

A researcher is testing a hypothesis of a single mean. The critical z value for a = .05 and a two‑tailed test is +1.96. The observed z value from sample data is ‑2.05. The decision made by the researcher based on this information is to the null hypothesis.

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A researcher is testing a hypothesis of a single mean. The critical z value for a = .05 and a two‑ta...

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