In determining the necessary sample size in making an interval estimate for a population mean,it is necessary to decide on the maximum likely error that is acceptable.

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The maximum likely error, or margin of error, is a key factor in determining the necessary sample size for making an interval estimate for a population mean. It is important to specify an acceptable level of error in order to ensure that the sample size is large enough to produce a reliable estimate.

In Determining the Necessary Sample Size in Making an Interval