Lol, no. It's higher than that because 70% of screener interviews end up not resulting in a hire, and probably 50-70% of on-sites don't. I think the last estimate I saw was about 50 hrs of interviewing total per hired candidate, and that feels about right to me.

7 interviews just for the hired candidate (1-2 screeners, 5-6 on-site pool interviews.) Maybe less than 7 hrs if they're cut to 45 mins each.