I am back again, using this thread as a reference.
I needed to install another perl module, Statistics::Descriptive
I came back here, sorted through the thread for clues as to what to do next. Went to the link to the dag repository and searched for "statistics" and found the perl-Statistics-Descriptive file. The actual file name is longer, but "perl-Statistics-Descriptive" is all you need.
In SME at the command line:
yum --enablerepo=dag install perl-Statistics-Descriptive
This got the correct response from yum. Running my script shows the module was installed correctly.
This post is for reference only, no replies are necessary.