Of the following, which would lead to a MORE precise confidence interval? O All else being equal, opting for a higher level of confidence. O All else being equal, using a smaller sample. All else...

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Extracted text: Of the following, which would lead to a MORE precise confidence interval? O All else being equal, opting for a higher level of confidence. O All else being equal, using a smaller sample. All else being equal, trying to provide an estimate for a population with a low average mean deviation. All else being equal, having a sample with a mean that is actually very high in comparison to the population mean.