Mathematics, 28.03.2020 03:40, raishagibson

The data file named robot contains a time series obtained from an industrial robot. The robot was put through a sequence of maneuvers, and the distance from a desired ending point was recorded in inches. This was repeated 324 times to form the time series.

(a) Display the time series plot of the data. Based on this information, do these data appear to come from a stationary or nonstationary process?

(b)Calculate and plot the sample ACF and PACF for these data. Based on this additional information, do these data appear to come from a stationary or nonstationary process?

(c) Calculate and interpret the sample EACF. (d)Use the best subsets ARMA approach to specify a model for these data. Compare these results with what you discovered in parts (a), (b), and (c)

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The data file named robot contains a time series obtained from an industrial robot. The robot was pu...