a. State the four components of time series  b. Demonstrate the 4-period moving average method.  c. Calculate the four seasonal indexes for the four quarters.  d. Find the seasonal index adjustment factor.  e. Find the least squares trend line for electricity demand using the sequential  numbering method or the zero-sum method.

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a. State the four components of time series 
b. Demonstrate the 4-period moving average method. 
c. Calculate the four seasonal indexes for the four quarters. 
d. Find the seasonal index adjustment factor. 
e. Find the least squares trend line for electricity demand using the sequential 
numbering method or the zero-sum method. 

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