Mathematics, 01.07.2021 22:40 payshencec21
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?
Display the models and their respective r^2.
Interpret both models. Which model seems to be more appropriate? Why?
Answers: 1
Mathematics, 21.06.2019 19:30
Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?
Answers: 1
Mathematics, 21.06.2019 20:30
Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.
Answers: 1
Mathematics, 21.06.2019 22:30
The area of a circle is equal to 1 dm². find the radius of the circle.
Answers: 1
Time series are particularly useful to track variables such as revenues, costs, and profits over tim...
Mathematics, 15.04.2021 09:10
Mathematics, 15.04.2021 09:10
Mathematics, 15.04.2021 09:10
Social Studies, 15.04.2021 09:10
History, 15.04.2021 09:10
Biology, 15.04.2021 09:10
Mathematics, 15.04.2021 09:10
History, 15.04.2021 09:10
Biology, 15.04.2021 09:10
Mathematics, 15.04.2021 09:10
Geography, 15.04.2021 09:10
Spanish, 15.04.2021 09:10