According to the Energy Information Administration, the average U.S. household spends $1338 per year for utilities (including heat, electricity, cooling, and water). The averages by region were as follows: Northeast ($1644), Midwest ($1396), South ($1328), and West ($1014). Assume that the findings for the Northeast could have been based on the utility expenditures reported by 250 households, with the data in file XR03065. 

a. Confirm the mean and determine the median and the standard deviation of the utility expenditures.
b. Generate and interpret the box-and-whisker plot for the households from this region.
c. From the results in parts (a) and (b), do there appear to be any “outlier” households? If so, for what reason(s) might energy-conservation officials wish to examine the habits or characteristics of these households?