Call / Whatsapp  # Statistical Methods for Decision Making

Consider the following time series data

• Construct a tine series plot. What type of pattern exists in the data?
• Develop the linear trend equation for this time series.
• What is the forecast for t ?

Question p. 822 #29

Consider the following time series data.

• Construct a time series plot. What type of pattern exist in the data?
• Use the following dummy variables to develop an estimated regression equation to account for any seasonal and linear trend effects in the data: Qtr1 = 1 if Quarter 1, 0 otherwise; Qtr2 = 1 if Quarter 2, 0 otherwise; Qtr3 = 1 if Quarter 3, 0 otherwise.
• Compute the quarterly forecasts for next year.

Question p. 834 #35

Consider the following time series data.

• Construct a time series plot. What type of pattern exist in the data?
• Show the four-quarter and centered moving average values for this time series.
• Compute seasonal indexes and adjust seasonal indexes for the four quarters.

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