customer requriment states that a bottled drink must contain 16 ounces of liquid. A new bottling plant is being opened and in an inital run 50 botteles are filled an the amount of liquid is mesaured on each. What is the proper statistical test to ensure that the new plant meets the requirements? one sample test of means sigma known one sample test of means sigma unknown, two sample indepents test of means , two sample paired test of means