. In Exercise 13.34, you calculated seasonality factors for the monthly number of visitors to Canada from countries other than the United States. Using these factors, do the following.

(a) Using statistical software, calculate the seasonally adjusted visitor time series. Make a time series plot of the original visitor

data with the seasonally adjusted data superimposed (see Figure 13.19, on page 706, for an example).

(b) Did seasonally adjusting the visitor data smooth the time series to the degree that seasonally adjusting the sales data in

Figure 13.19 did? What does this imply about the strength of the seasonal pattern in these two time series?

(c) What do you observe in the smoothed series? Is it trending? If so, describe the trend in terms of direction and strength.


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