I am new to WordPress and don't know how to set the "blog name". I need to change a current value that has been coded (or set) somewhere for the home page only. It is appearing in the title, and I don't know how to update it. Thanks.
Go to admin dashboard > Settings > General
You are getting General Settings...
Maybe it is the "Site Name" in the settings?
In the admin area, go to Settings >> General >> Site Title to enter the title.