Hudson Marine has been an authorized dealer for C&D marine radios for the past seven years. Suppose the quarterly sales values for the seven years of historical data are as follows.

a. Compute the centered moving average values (Four-Quarter Moving Average) for this time series (to 3 decimals).

c. Compute the seasonal indexes for the four quarters (to 3 decimals).

d. When does Hudson Marine experience the largest seasonal effect?

Hudson Marine experiences the largest seasonal increase in quarter_______ . The largest seasonal effect is the seasonal decrease in quarte_____r .

Does this result seem reasonable?

Total Yearly Sales Year Quarter 1 Quarter 2 Quarter 3 Quarter 4 14 31 17 13 48 25 21 76 27 28 Bow 93 32 29 104 38 31 113 40 34 125 29 & BEE o o voo A NHA Sales Average Centered Moving Quarter Adjusted Seasonal Index