Problem $5$

The North Aurelius Elementary School's lunch customers are forecasted based on a moving average. The number of customers served by day for the first five weeks of the year are as follows:

$\backslash$table$[[,1,2,3,4,5],[$Mor$,421,425,430,425,440],[$NTond$,390,410,396,415,402],[\backslash$table$[[$Wednesday$],[$Thursdav$]],410,415,406,408,410],[$Thursday$,398,412,385,402,406],[$Friday$,440,435,445,438,44?$