Thanks for your help leejosepho.
I’m not too sure about domains and servers but here’s the deal:
I have two websites, both hosted by https://www.nerdster.com.au. I have the same deal for each website with Nerdster.
I installed WordPress via Softaculous on the first one and its URL was https://www.businessbythebook.com.au/wp. I put a blog as the front page of that website, and when somebody goes to https://www.businessbythebook.com.au they get my posts in that blog.
When I got the second website, tedsherwood.com I wanted the same thing to happen. But when I installed WordPress with Softaculous with the same settings – confirmed later via ‘Softaculous – Edit Page’ – the blog doesn’t come up when somebody goes to https://www.tedsherwood.com. What comes up is ‘Index…, i.e. nothing on the actual website. That’s my issue.