Question

In: Statistics and Probability

Consider the following time series data. Excel File: data17-35.xls Quarter Year 1 Year 2 Year 3...

Consider the following time series data.

Excel File: data17-35.xls

Quarter Year 1 Year 2 Year 3
1 4 6 7
2 2 3 6
3 3 5 6
4 5 7 8

b. Show the four-quarter and centered moving average values for this time series (to 3 decimals if necessary).

Year Quarter Time Series Value Four-Quarter Moving Average Centered Moving Average
1 1 4
2 2
3.25
3 3 ________
4
4 5 _______
_________
2 1 6 _________
4.75
2 3 5
5.25
3 5 5.375
5.5
4 7 _______
_______
3 1 7 _______
_______
2 6 ______
________
3 6
4 8

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

Quarter Seasonal
Index
Adjusted
Seasonal
Index
1
2
3
4
Total

Solutions

Expert Solution



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