College Statistics Quiz
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ESTIMATION AND CONFIDENCE INTERVALS
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The distribution of annual incomes for all adults in a certain country is known to be strongly skewed to the right. A researcher plans to take a random sample of 400 adults from this population and calculate the sample mean income, xˉ\bar{x}, as a point estimate for the population mean μ\mu. Which of the following statements most accurately describes the sampling distribution of xˉ\bar{x}?
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