Discussion - Time Series Modeling
mike76801
Time series are particularly useful to track variables such as revenues, costs, and profits over time. Time series models help evaluate performance and make predictions. Consider the following and respond in a minimum of 175 words:
- Time series decomposition seeks to separate the time series (Y) into 4 components: trend (T), cycle (C), seasonal (S), and irregular (I). What is the difference between these components?
- The model can be additive or multiplicative. When we do use an additive model? When do we use a multiplicative model?
- The following list gives the gross federal debt(in millions of dollars) for the U.S. every 5 years from 1945 to 2000:
Year Gross Federal Debt ($millions)
1945 260,123
1950 256,853
1955 274,366
1960 290,525
1965 322,318
1970 380,921
1975 541,925
1980 909,050
1985 1,817,521
1990 3,206,564
1995 4,921,005
2000 5,686,338
- Construct a scatter plot with this data. Do you observe a trend? If so, what type of trend do you observe?
- Use Excel to fit a linear trend and an exponential trend into the data. Display the models and their respective r^2.
- Interpret both models. Which model seems to be more appropriate? Why?
13 days ago
10
Dq27
Time series are particularly useful to track variables such as revenues, costs, and profits over time. Time series models help evaluate performance and make predictions. Consider the following and …
a year agoTime Series Modeling
Time series are particularly useful to track variables such as revenues, costs, and profits over time. Time series models help evaluate performance and make predictions. Consider the following and …
2 years agoDiscussion - 6
Time series are particularly useful to track variables such as revenues, costs, and profits over time. Time series models help evaluate performance and make predictions. Consider the following …
2 years agoweek 6 discussion
(PORTION 1)
Time series are particularly useful to track variables such as revenues, costs, and profits over time. Time series models help evaluate performance and make predictions. Consider the …
2 years agoTime Series Modeling
Due Day 3
Time series are particularly useful to track variables such as revenues, costs, and profits over time. Time series models help evaluate performance and make predictions. Consider the …
2 years agoweek 6 _ discussion
Due Day 3
Time series are particularly useful to track variables such as revenues, costs, and profits over time. Time series models help evaluate performance and make predictions. Consider the …
5 months agoData
NOT RATEDTime series are particularly useful to track variables such as revenues, costs, and profits over time. Time series models help evaluate performance and make predictions. Consider the following and …
2 years agoDAT565 v3 Wk6 Discussion Post
NOT RATEDTime series are particularly useful to track variables such as revenues, costs, and profits over time. Time series models help evaluate performance and make predictions. Consider the following and …
2 years agoTime series modeling DQ
NOT RATEDTime series are particularly useful to track variables such as revenues, costs, and profits over time. Time series models help evaluate performance and make predictions. Consider the following …
2 years agoWeek 6 DAT dis
NOT RATEDTime series are particularly useful to track variables such as revenues, costs, and profits over time. Time series models help evaluate performance and make predictions. Consider the following and …
2 years ago
