If I get a tea bag every time someone call me in a panic about their mortgage rate after some press conference held by the Federal Reserve, I’d have probably opened my own tea house by now.
The primary task that the Federal Reserve do (at least in the eyes of the public) is to set the rate in which banks borrow from one another. The organization also controls the rate at which the Federal Reserve Banks lend short terms loans to commercial banks.
It does not mandate, order or set the interest rates that consumers have to pay for their home loans.