premise: The FCC asserts that it has insufficient information upon which to determine whether any small businesses within the SBA-approved definition were successful bidders for blocks A and B. For block C, the FCC estimates that 89 of the 90 nondefaulting bidders are small businesses.
hypothesis: It is unknown how many successful bidders of blocks A and B were small businesses; for block C, the number is an estimated 89 out of 90.