Mathematics, 14.04.2020 22:26 kcarstensen59070
The ages of a group of 135 randomly selected adult females have a standard deviation of 18.3 years. Assume that the ages of female statistics students have less variation than ages of females in the general population, so let sigmaequals18.3 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.
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The ages of a group of 135 randomly selected adult females have a standard deviation of 18.3 years....
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