Can we draw the following hypothesis from the context? 

Context:

HOUSTON Nov 18 The Federal Reserve's newest policymaker, Rob Kaplan, on Wednesday declined to say whether he will support an interest rate rise in December. "If and when" the Fed does raise rates, it will do so very gradually, he said. (Reporting by Ann Saphir; Editing by Chizu Nomiyama)

Hypothesis: The interest rate may or may not rise in December.
Yes