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A researcher is testing a hypothesis of a single mean. The critical z value for a = .05 in a two-tailed test is +1.96. The

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A researcher is testing a hypothesis of a single mean. The critical z value for a = .05 in a two-tailed test is +1.96. The observed z value from sample data is -1.85. The decision made by the researcher based on this information is to the null hypothesis. O change the alternate hypothesis O reject O restate O fail to reject O redefine

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