Statistical maths

The marketing team at an internet music site wants a better understanding of who their customers are. They send out a survey to 25 customers 20 32 35 29 30 (and use an incentive of $50 worth of downloads to guarantee a high response rate) asking for demographic information. One of the variables is the customer's age. For the 25 customers, the ages are shown to the right. Complete parts a) through c). 30 30 14 28 12 38 22 44 48 25 26 22 31 36 32 35 43 44 43 47 a) Standardize the minimum and maximum ages using a mean of 31.84 and a standard deviation of 9.728. The z-score for the minimum age is and the z-score for the maximum age is (Round to three decimal places as needed.)