WASHINGTON (AP) - The Federal Reserve today is scheduled to wrap up its two-day policy setting session, by announcing an interest rate cut.

Analysts generally agree that it will happen. But there's uncertainty over much rates will be cut.

Many investors and economists are betting the Fed will reduce its benchmark rate by a-half point to 1 percent. Some think that it might decide for a smaller quarter-point reduction in fed funds down to 1.25 percent.

As result, commercial banks' prime lending rates for millions of consumer loans would drop by an equal amount. The prime rate is now at 4.5 percent, used to guide rates for home equity loans, some credit cards and other floating loan rates.

In either case, both the Fed's key rate and the prime rate would go to the lowest level in more than four years.