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Why is population shape of concern when estimating a mean? What does sample size have to do with it?
Submitted: 489 days and 11 hours ago.
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When estimating the mean we use the arithmetic mean which is not a robust measure. Population shape shows the frequency of values that can be obtained by sampling the entire population. For small samples we can't be sure it represents the population in a good way. When the sample size increases we can be more and more sure that our sample represents the population.
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