Sample Size, Variance and Standard Deviation: A student organization plans to ask 100 randomly selected students how much they spent on textbooks last semester. You argue for a sample of 900 students instead of 100. You know the standard deviation of the sample mean x of the amounts spent will differ. How will the standard deviation of the larger sample compare with that of the smaller sample?
Statisitcs:Sample Size, Variance and Standard Deviation
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