Cost of Backyard Structure.Many families in California are using backyard structures for home offices, art studios, and hobby areas as well as for additional storage. Suppose that the mean price for a customized wooden, shingled backyard structure is $3100. Assume that the standard deviation is $1200.

1. What is thez-score for a backyard structure costing $2300?
2. Answer
4. What is thez-score for a backyard structure costing $4900?
5. Answer
7. Interpret thez-scores inparts (a)and(b). Comment on whether either should be considered an outlier.
8. Answer
9. $2300 is .67 standard deviations below the mean. $4900 is 1.50 standard deviations above the mean. Neither is an outlier.
10. If the cost for a backyard shed-office combination built in Albany, California, is $13,000, should this structure be considered an outlier? Explain.