Minimum Of 175 Words Review Of The Store Scatter Plot
Mininum Of 175 Wordsreview The Scatter Plot Of The Stores Sales From
Review the scatter plot of the store’s sales from 2010 through 2021. 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 do you use each? Review the scatter plot of the exponential trend of the time series data. Do you observe a trend? If so, what type of trend do you observe? What predictions might you make about the store’s annual sales over the next few years?
Paper For Above instruction
The analysis of store sales data over an extended period from 2010 to 2021 offers vital insights into sales patterns, seasonal fluctuations, and long-term trends. The scatter plot of this sales data visually illustrates the fluctuations and potential growth trajectories over time. An examination of this plot often reveals the presence of an underlying trend, which, in this case, appears to be upward, indicating gradual sales growth over the years. Such a trend suggests increasing customer demand, successful marketing strategies, or expanding store operations. Additionally, the scatter plot often displays irregular fluctuations attributable to external factors like economic shifts, promotions, or unforeseen disruptions, which add complexity to the sales pattern.
In the context of time series analysis, decomposing the data helps to understand these underlying components—trend, cycle, seasonal, and irregular. The trend (T) component reflects the long-term progression, whether upward, downward, or stationary. The cycle (C) refers to fluctuations related to economic or business cycles, typically spanning multiple years and influencing sales independently of seasonal effects. The seasonal (S) component captures regular, repeating patterns within a fixed period, such as increased sales during holidays or specific months. The irregular (I) component accounts for random, unpredictable variations that do not follow a pattern.
Time series models can be classified as either additive or multiplicative based on how these components combine to form the observed data. In an additive model, the components are summed: Y = T + C + S + I. This approach assumes that the magnitude of seasonal and irregular effects remains constant regardless of the trend level. Conversely, the multiplicative model assumes components are multiplied: Y = T × C × S × I, implying that effects grow proportionally with the trend. When the seasonal variation or irregular fluctuations are proportional to the level of sales, the multiplicative model is appropriate. If these effects are relatively constant over time, an additive model is preferable.
Examining the scatter plot depicting an exponential trend indicates a consistent upward movement, which suggests exponential growth in sales. This pattern demonstrates that sales are not increasing linearly but at an increasing rate, likely due to compounding factors such as rising customer base or improved marketing strategies. Recognizing this exponential trend allows for informed future projections, suggesting that the store’s annual sales are expected to continue increasing significantly over the next few years. Forecasting models incorporating the exponential trend can project a substantial rise in sales, assisting management in strategic planning, resource allocation, and inventory management.
Overall, the analysis highlights the importance of understanding underlying sales patterns through visual and statistical tools. Recognizing the type of trend, seasonal variations, and the nature of irregular fluctuations enables businesses to forecast more accurately and make data-driven decisions, ultimately fostering sustainable growth in competitive markets.
References
- Chatfield, C. (2004). The Analysis of Time Series: An Introduction. Chapman and Hall/CRC.
- Hyndman, R. J., & Athanasopoulos, G. (2018). Forecasting: principles and practice. OTexts.
- Makridakis, S., Wheelwright, S. C., & Hyndman, R. J. (1998). Forecasting: methods and applications. John Wiley & Sons.
- Brockwell, P. J., & Davis, R. A. (2016). Introduction to Time Series and Forecasting. Springer.
- Shumway, R. H., & Stoffer, D. S. (2017). Time Series Analysis and Its Applications. Springer.
- Savitzky, A. S. (2011). Business Forecasting: Practical Problems and Solutions. Routledge.
- Taylor, S. J. (2008). Modelling Financial Time Series with S-PLUS®. Springer.
- Harvey, A. C. (1990). Forecasting, Structural Time Series Models and the Kalman Filter. Cambridge University Press.
- Box, G. E., & Jenkins, G. M. (1976). Time Series Analysis: Forecasting and Control. Holden-Day.
- Graham, L. (2014). Data Analysis and Forecasting. CRC Press.