Course Solutions Uncategorized (Solved) : Ages Group 128 Randomly Selected Adult Females Standard Deviation 165 Years Assume Ages Fe Q32519465 . . . .

(Solved) : Ages Group 128 Randomly Selected Adult Females Standard Deviation 165 Years Assume Ages Fe Q32519465 . . . .

 

The ages of a group

The ages of a group of 128 randomly selected adult females have a standard deviation of 16.5 years. Assume that the ages of female statistics students have less variation than ages of females in the general population, so let σ= 16.5 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 98% confidence that the sample mean is within one-half year of the population mean. The required sample size is (Type a whole number.)

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