Reference no: EM132742661
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: 3 different responses to the same question
Time series decomposition seeks to separate the time series (Y) into 4 components: trend (T), cycle (C), seasonal (S), and irregular (I).
Question 1: What is the difference between these components?
Question 2: 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
Question 3: Construct a scatter plot with this data. Do you observe a trend? If so, what type of trend do you observe?
Question 4: Use Excel to fit a linear trend and an exponential trend to the data. Display the models and their respective r^2.
Question 5: Interpret both models. Which model seems to be more appropriate? Why?
Does Big Howie Hot Dog Stand have internal controls
: Does Big Howie's Hot Dog Stand have internal controls in place to catch this error? If so, how will this error be detected
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Calculate the employer payroll taxes
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Elements of operations and supply chain management
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Determine the employee gross pay and net pay for the week
: If the employee worked 54 hours during the week, determine the employee's (a) gross pay and (b) net pay for the week
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When do use a multiplicative model and why
: Time series are particularly useful to track, The model can be additive or multiplicative. When we do use an additive model? When do use a multiplicative model?
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Explain how to potentially mitigate risks
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Define the fundamental responsibilities
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Discuss implications of decision
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Journalize the entry to record the transaction on June
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