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10.07.2019 •
Mathematics
7.2 a population has a mean of ? = 80 and a standard deviation of ? = 10.
a. if you select a random sample of n = 4 scores from this population, how much error would you expect between the sample mean and the population mean?
b. if you select a random sample of n = 25 scores from this population, how much error would you expect between the sample mean and the population mean?
c. how much error would you expect for a sample of n = 100 scores?
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