Refer to exercise 14.26. (a) Plot the dollar/pound exchange rate data. Make the graph nice, then copy

Question:

Refer to exercise 14.26.
(a) Plot the dollar/pound data. Make the graph nice, then copy and paste it so you have four copies.
(b) Use MegaStat or MINITAB to perform a simple exponential smoothing using α = .05, .10, .20, and .50, using a different line chart for each.
(c) Which value of do you prefer? Why?
(d) Is an exponential smoothing process appropriate for this kind of data? Exchange Rate
The value of one currency for the purpose of conversion to another. Exchange Rate means on any day, for purposes of determining the Dollar Equivalent of any currency other than Dollars, the rate at which such currency may be exchanged into Dollars...