Elevation statistics of traced polygons

I wanted to find the mean, min, max, stddev elevation of a bunch of traced terraces, but this can be done with any input files of a zone dataset (i.e. shapefile of polygons) and a value raster (i.e. raster of elevation values).

1. Make the zone dataset, in my case, make a shapefile of polygons [make polygon layer]

2. Add field(s) to the Attribute Table to define the zones. I have a separate ID for each polygon and also the field "Name" for the groupings Qt1, Qt2, etc. To add fields, open the shapefile in ArcCatalog and in the Fields tab, just click in the table to add the Field Name and Data Type (must be integer or text).

Then edit the field to define your zones. First add the zone dataset to the map.
Then, Editor toolbar -> Start edit session -> right-click on your shapefile layer in the leftbar -> Open Attribute Table -> click in the table and fill in.

Stop edit session and Save changes.

3. Zonal analysis by attribute
Spatial Analyst toolbar -> Zonal Statistics
Fill in stuff in the pop up window:
Zone dataset: shapefile of polygons
Zone field: ID or Name or whatever your defining field is
Value raster: elevation dataset
Check or uncheck Ignore NoData and Join output table to zone layer (I like to join)
Chart statistic: I checked Mean but got min, max, range, mean, std, sum in the output table
Specify output table

4. Click OK, the output table pops up, and you're Done.