Example 3 The UNF bookstore has collected data about the number of students visiting each day during the first 4 weeks of classes. Please forecast the demand per day for week 5 . The forecast for the entire week 5 is 5,400 students (figures are not real). Example 3 The UNF bookstore has collected data about the number of students visiting each day during the first 4 weeks of classes. Please forecast the demand per day for week 5 . The forecast for the entire week 5 is 5,400 students (figures are not real)