A company which receives a monthly demand estimate for 750 Model X, 1500 Model Y, and 1500 Model Z, is trying to decide how the models should be produced in order to smooth production as much as possible. Which of the following represent the best mixed model sequence? (Assume low setup times and 30 days per month)
25 units of Model X in Day 1, 50 units of Model Y in Day 2, and 50 units of Model Z in Day 3
25 units of Model X, then 50 units of Model Y, then 50 units of Model Z each day of the month
1 Model Z, 1 Model Y, 1 Model X, 1 Model Z, 1 Model Y, and repeat sequence 25 times per day every day of the month
25 Model X, then 100 Model Y for Day 1, 25 Model X, then 100 Model Z for Day 2, and repeat for each day of the month
750 units of Model X, then 1500 units of Model Y, then 1500 units of Model Z.