A sample of 16001600 computer chips revealed that 21%21% of thechips fail in the first 10001000 hours of their use. The company'spromotional literature states that 23%23% of the chips fail in thefirst 10001000 hours of their use. The quality control managerwants to test the claim that the actual percentage that fail isdifferent from the stated percentage. Is there enough evidence atthe 0.020.02 level to support the manager's claim?
signifigant evidence or not enough evidence
