A. Insert a copy of your graph of the autocorrelation

a. Insert a copy of your graph of the autocorrelation function (ACF) for the weekly closing stock prices data.

b. On the basis of your ACF alone, state whether or not, the data are trended over time and explain the basis of your choice.

c. On the basis of the ACF alone, state whether or not the data are serially correlated in time and explain the basis of your decision.

   


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