A local company makes snack-size bags of potato chips. Each day, the company produces batches of 400 snack-size bags using a process designed to fill each bag with an average of 2 ounces of potato chips. However, due to imperfect technology, the actual amount placed in a given bag varies. Assume the amount placed in each of the 400 bags is normally distributed and has a standard deviation of 0.1 ounce. What is the probability that a sample of 20 bags has an average weight of less than 1.99 ounces? Between 25% and 30% less than 5% between 30% and 50% between 10% and 15% greater than 50% between 20% and 25% between 15% and 20% between 5 : and 10%