A researcher determines that a margin of error (or sampling error, e) of no more than
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A researcher determines that a margin of error (or sampling error, e) of no more than ± 0.5 units is desired, along with a 98% confidence interval. If we assume a normal population standard deviation of 0.2, calculate the sample size, n.
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Figure 543 illustrates the Excel solution Interpretation Thus to produce a 98 confid...View the full answer
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