The weight of a certain raw material must on average be at least 125 grams / pc. It is known that the standard deviation for the weight of the raw material is 20 grams. The weight is quality checked with a sample of 100 pieces, for the average weight is calculated. Where is the limit for when such a sample can be said to constitute evidence of a 2.5% significance level because the raw materials in the delivery are too light? Answer in grams to two decimal places