Consider the Time Series Shown in the Following Table A Calculate the Percentage of Trend for Each Time Period

Essay

Consider the time series shown in the following table. $$\begin{array} { | c c | c c | } \hline \text { Time period } & y & \text { Time period } & y \\\hline 1 & 35 & 9 & 46 \\2 & 32 & 10 & 43 \\3 & 29 & 11 & 48 \\4 & 26 & 12 & 41 \\5 & 28 & 13 & 34 \\6 & 32 & 14 & 29 \\7 & 38 & 15 & 25 \\8 & 43 & 16 & 23 \\\hline\end{array}$$ a. Calculate the percentage of trend for each time period.
b. Plot the percentage of trend.
c. Describe the cyclical effect (if there is one).