We wish to compute a confidence interval for a population mean.Suppose we are determining the sample size n needed to achieve a desired margin of error for this interval.If we compute the value of n to be 79.2,we would choose to sample 79 observations.

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Quizplus · Accepted Answer

Sample size cannot be a non-integer value, so we would choose to round up to the nearest whole number and sample 80 observations.

We Wish to Compute a Confidence Interval for a Population