Problem
"Best in the World" bakery sells plain bagels to its customers in its two units on a daily basis. The manager of the bakery wants to identify which of the bakery units faces more predictable demand for bagels.
To achieve this, the manager collected data about the number of bagels sold on a monthly basis as displayed below.
Which unit has more predictable demand for bagels?
|
Demand for Bagels
|
|
Month
|
UNIT A
|
UNIT B
|
|
1
|
113
|
103
|
|
2
|
177
|
165
|
|
3
|
93
|
75
|
|
4
|
78
|
117
|
|
5
|
119
|
141
|
|
6
|
105
|
179
|
|
7
|
118
|
91
|
|
8
|
149
|
183
|
|
9
|
75
|
130
|
|
10
|
172
|
155
|
|
11
|
163
|
89
|
|
12
|
107
|
149
|