1. The monthly sales for the Telco Batteries, Inc., were as follows:
|
Month
|
Sales
|
|
Jan
|
20
|
|
Feb
|
21
|
|
Mar
|
15
|
|
Apr
|
14
|
|
May
|
13
|
|
Jun
|
16
|
|
Jul
|
17
|
|
Aug
|
18
|
|
Sep
|
20
|
|
Oct
|
20
|
|
Nov
|
21
|
|
Dec
|
23
|
a. Plot monthly sales data on sheet of graph paper.
b. Forecast January sales for the New Year