A researcher expects a treatment to produce an increase in the population mean. the treatment is evaluated using a one-tailed hypothesis test, and the test produces z = −1.85. based on this result, what

A researcher expects a treatment to produce an increase in the population mean. the treatment is evaluated using a one-tailed hypothesis test, and the test produces z = −1.85. based on this result, what is the correct statistical decision?

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A researcher expects a treatment to produce an increase in the population mean. the treatment is evaluated using a one-tailed hypothesis test, and the test produces z = −1.85. b…

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