A company that produces chip claims that the average size of the chip is 4 \( \mathrm{cm} \). This observation is normally distributed with a population standard deviation of 0.08 . A random sample of 60 chips was taken and it is found that the mean size of chip produced is \( 4.05 \mathrm{~cm} \). Is there enough evidence to support the claim at \( 5 \% \) level of significance?