Question: Suppose that you want to perform a hypothesis test for a population mean based on a small sample but that preliminary data analyses indicate either

Suppose that you want to perform a hypothesis test for a population mean based on a small sample but that preliminary data analyses indicate either the presence of outliers or that the variable under consideration is far from normally distributed.
a. Is either the z-test or t-test appropriate?
b. If not, what type of procedure might be appropriate?

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