Mike's answer is right. The yoke controls the elevator not the stabilizer.
MCAS trims the stabilizer, which can be overriden through the thumb switch, trim cutout switches (disables MCAS and the thumb switch), or by manually turning the Trim Wheel. (To see what that looks like, refer to the end of this video.)
To expand on Mike's answer, the preliminary report for the Ethiopian Airlines flight has been published.
According to the report, after MCAS activated, the pilots first executed option 2 (hit the Stabilizer Trim Cutout switches). They then attempted to trim manually via the wheel (option 3), which was apparently unsuccessful - this can be due to the aerodynamic forces on the stabilizer making the wheel very hard to turn. At last, they reengaged electric trim, and trimmed in the Aircraft Nose Up (ANU) direction with the thumb switch (option 1).
A few seconds later, MCAS reengaged in the Aircraft Nose Down (AND) direction for 5 seconds. 15 seconds later, the recording ends.
According to the report, they were pulling on the yoke continuously to keep level flight during most of the recording.