Coded monthly sales figures of a particular brand of T.V. for 18 months commencing January 1,2005 are as follows :
YEAR JAN FEB MAR APR MAY JUNE JULY AUG SEPT OCT NOV DEC 2005 18 16 23 27 28 19 31 29 35 27 28 24 2006 24 28 29 30 29 22 Calculate six monthly moving averages and display these and the original figures on the same graph using the same axes for bot
