Question

A sample of 1500 computer chips revealed that 27% of the chips do not fail in the first 1000 hours of their use. The company's promotional literature states that 25% of the chips do not fail in the first 1000 hours of their use. The quality control manager wants to test the claim that the actual percentage that do not fail is different from the stated percentage. Is there enough evidence at the 0.02 level to support the manager's claim?

Answer 1

Answer

The answer and procedures of the exercise are attached in the following archives.

Step-by-step explanation:

You will find the procedures, formulas or necessary explanations in the archive attached below. If you have any question ask and I will aclare your doubts kindly.