The U.S. Department of Agriculture
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The U.S. Department of Agriculture publishes statistics on the production of various types of food commodities by month. Shown here are the production figures on broccoli for January of a recent year through December of the next year. Use these data to compute 12-month centered moving averages (T C). Using these computed values, determine the seasonal effects (S I).
| Broccoli |
| Broccoli |
Month | (million pounds) | Month | (million pounds) |
January (1st year) | 132.5 | January (2nd year) | 104.9 |
February | 164.8 | February | 99.3 |
March | 141.2 | March | 102.0 |
April | 133.8 | April | 122.4 |
May | 138.4 | May | 112.1 |
June | 150.9 | June | 108.4 |
July | 146.6 | July | 119.0 |
August | 146.9 | August | 119.0 |
September | 138.7 | September | 114.9 |
October | 128.0 | October | 106.0 |
November | 112.4 | November | 111.7 |
December | 121.0 | December | 112.3 |
- 8 years ago
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- the_u.s._department_of_agriculture.xlsx