(4 points) Cereal boxes-A large box of corn flakes claims to contain 515 grams of cereal. Since cereal boxes must contain at least as much product as their packaging claims, the machine that fills the boxes is set to put 520 grams in each box. The machine has a known standard deviation of 4.5 grams and the distribution of fills is known to be normal. At random intervals throughout the day, workers sample 4 boxes and weigh the cereal in each box. If the average is less than 515 grams, the machine is shut down and adjusted. 1. How often will the workers make a Type I error with this decision rule and the hypotheses: Ho H 520 vs. Ha: