Question
In: Statistics and Probability
Time series decomposition seeks to separate the time series (Y) into 4 components: trend (T), cycle...
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?
Solutions
orchestra answered 2 years agoRelated Solutions
There are four components to a time series: secular trend, cyclical variation, seasonal variation, and irregular...
There
are four components to a time series: secular trend, cyclical
variation, seasonal variation, and irregular variation. Research
these components and explain the differences as well.
4. Time-series data contain both trend and seasonal variations. Use an example of quarterly data to...
4. Time-series data contain both trend and seasonal variations.
Use an example of quarterly data to explain how you would measure
the trend and how you would measure the seasonal variation
please TYPE your answer and dont finish this
question without writing a full page
also do not copy the other answers on this site
for this question, they are in complete
solve using powers series method, full procedure please: y´(t) = -y(t) + t
solve using powers series method, full procedure please:
y´(t) = -y(t) + t
v Consider the monthly time series shown in the table. Month t Y January 1 185...
v
Consider the monthly time series shown in the table.
Month
t
Y
January
1
185
February
2
192
March
3
189
April
4
201
May
5
195
June
6
199
July
7
206
August
8
203
September
9
208
October
10
209
November
11
218
December
12
216
Use the method of least squares to fit the model E(Yt) = β0 +
β1t to the data. Write the prediction equation.
Use the prediction equation to obtain forecasts for the...
Consider the monthly time series shown in the table. Month t Y January 1 185 February...
Consider the monthly time series shown in the table.
Month
t
Y
January
1
185
February
2
192
March
3
189
April
4
201
May
5
195
June
6
199
July
7
206
August
8
203
September
9
208
October
10
209
November
11
218
December
12
216
Use the method of least squares to fit the model E(Yt) = β0 +
β1t to the data. Write the prediction equation.
Use the prediction equation to obtain forecasts for the next...
A technique used to isolate the trend in a time series is: adjusted factor% seasonal index...
A technique used to isolate the trend in a time series is:
adjusted factor%
seasonal index correction factor
centered moving average
seasonal decomposition
Solve equations 1.) y'-y=t/y 2.) y'-(1/t)y=y2sin(t) 3.) y'+y=y2cos(t) 4.) y'-2y=cos(t)/(y1/2)
Solve equations
1.) y'-y=t/y
2.) y'-(1/t)y=y2sin(t)
3.) y'+y=y2cos(t)
4.) y'-2y=cos(t)/(y1/2)
In a time-series decompostion of sales (in millions of units), the following trend has been estimated:...
In a time-series decompostion of sales (in millions of units),
the following trend has been estimated:
CMAT=12.315+0.196(T)
The seasonal indices have been found to be:
Quarter
Seasonal Index
1
1.27
2
1.02
3
0.73
4
0.98
For the coming year, the time index and cycle factors are:
Quarter
T
CF
1
21
1.01
2
22
1.04
3
23
1.06
4
24
1.04
a. From this information, prepare a forecast for each quarter of
the coming year.
b. Actual sales for...
Analyze the time-series data of Balance of Payment of China (Since 2010). Discuss the trend of...
Analyze the time-series data of Balance of Payment of
China (Since 2010). Discuss the trend of changes in current,
capital and financial accounts. Based on your observation, with
other external economic information, what shall the policymakers do
in responding to these changes?
You required to do.
1. Find the current account, financial account, and
capital account of china.
2. Describe thier trends of changes from 2010 to 2019
with evidence
3. Explain why their were such changes.with
evidence.
4. Advice...
Analyze the time-series data of Balance of Payment of China (Since 2010). Discuss the trend of...
Analyze the time-series data of Balance of Payment of
China (Since 2010). Discuss the trend of changes in current,
capital and financial accounts. Based on your observation, with
other external economic information, what shall the policymakers do
in responding to these changes? 800 words use economic concepts to
develop your arguments with clear organization, supported with
evidence and statistics.
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