To visually scan the z scores and find unusual values, from the menus choose:

Graphs
Boxplot...

Select Summaries of separate variables.

Click Define.

Select Zscore: Log-long distance through Zscore: Log-wireless as the variables the boxes represent.

Click Options.

Select Exclude cases variable by variable.

Click Continue.

Click OK in the Define Simple Boxplot dialog box.

Boxplots of the z scores show that customer 567 spent much more than the average customer on toll-free service last month. This should account for the larger skewness and kurtosis observed in Toll free last month.