Social Studies, 16.10.2019 01:30, ladybugys
The ages of a group of 147 randomly selected adult females have a standard deviation of 17.5 years. assume that the ages of female statistics students have less variation than ages of females in the general population, so let sigmaequals17.5 years for the sample size calculation. how many female statistics student ages must be obtained in order to estimate the mean age of all female statistics students? assume that we want 90% confidence that the sample mean is within one-half year of the population mean. does it seem reasonable to assume that the ages of female statistics students have less variation than ages of females in the general population?
Answers: 2
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