A manufacturer tests a certain number of the headsets that are produced each day, with approximately 3% of the headsets found defective. If 280 units of that model are tested, and the manufacturer finds 273 headsets without any defects, there is a
% chance of finding a defective headset.

If the theoretical model is valid, and 1,000 units of that model are tested, the company would expect the empirical probability to
.