[All Steps] A pilot survey of the ages of County residents is taken and initially shows and average age of 33.5 years with a standard deviation of 5.2 years.
Question: A pilot survey of the ages of County residents is taken and initially shows and average age of 33.5 years with a standard deviation of 5.2 years. The researcher now wants to do a full survey and to make an estimate of the average age of the population of County residents with 95% confidence and with a precision of estimate of plus and minus 1.5 years. How large a sample will be required?
Deliverable: Word Document 
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