You are in the business of hiring part-time employees. This allows your business to have a cheaper workforce since you save on benefits. You want to attract potential employees, but you do not want to pay out an extravagant amount of money. Based on experience, the salary of a part-time employee typically ranges from $10 to $13.50 an hour.

You will conduct a sample of wage amount from part-time employees within the general geographic area to determine an estimate of the population mean for wages. If you want to be 95% sure that your sample mean is within ten cents of the population mean, how many employees do you need to look at?