What is the acceleration of the elevator as a multiple of the acceleration of gravity, in units of g?

The Stratosphere Tower in Las Vegas is 1193 ft high. It takes 2.9 min, 28 sec to ascend from the ground floor to the top of the tower using the high-speed elevator. The acceleration of gravity is 9.81 m/s2. uming that the elevator starts and ends at rest, and its acceleration has a constant magnitude when moving.