Question

this is a time series statistics question please answer problem 3.36 (all parts a through d) is pictured. it refers to using the data called cpg which is already a built-in data set to r code. show output and code used for r code. thanks.

3.36 One of the remarkable technological developments in the computer industry has been the ability to store information densely on a hard drive. In addition, the cost of storage has steadily declined causing problems of too much data as opposed to big data The data set for this assignment is cpg, which consists of the median annual retail price per GB of hard drives, say cr, taken from a sample of manufacturers from 1980 to 2008 (a) Plot c and describe what you see. (b) Argue that the curve o versus f behaves like c ae by fitting a linear regression of log c, on t and then plotting the fitted line to compare it to the logged data. Comment. 164 3 ARIMA Models fc) Inspect the residuals of the linear regression lit and comment. (d) Fit the regression again, but now using the fact that the errors are autocorsel Comment.

Answer 1

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