commercial bakery has recorded sales (in dozens) for three products. shown a< follows:

 

A commercial bakery has recorded sales (in dozens) for three products. shown a< follows:

Day Blueberry 
Muffins		 Cinnamon 
Buns		 Cupcakes
1 30 18 45
2 34 17 26
3 32 19 27
4 34 19 23
  35 22 22
      (continued)

 

 

 

Day Blueberry
Muff ins		 Cinnamon 
Buns		 Cupcakes
6 30 23 48
7 34 23 29
8 36 25 20
9 29 24 14
10 31 26 18
11 35 27 47
12 31 28 26
13 37 29 27
14 34 31 24
15 33 33 22

 

a Predict orders for the following day for each of the products using an appropriate naive method. Hint: Pia each data set.

b.  What should the use of sales data instead of demand imply?