A Time Series Is Shown in the Table Below A Plot the Time Series to Determine Which of the

question 60

Essay

A time series is shown in the table below: $$\begin{array} { | c | c | } \hline \text { Time period } & y _ { t } \\\hline 1 & 48 \\2 & 50 \\3 & 46 \\4 & 42 \\5 & 40 \\6 & 32 \\7 & 34 \\8 & 26 \\9 & 21 \\10 & 13 \\\hline\end{array}$$ a. Plot the time series to determine which of the trend models appears to fit better.
b. Use the regression technique to calculate the linear trend line and the quadratic trend line. Which line fits better? Use the best model to forecast the value of y for time period 7.

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Definitions:

Future Bond Issue

A planned issuance of bonds by a corporation or government in the future to raise capital.

Dividends

Distributions of a portion of a company's earnings, decided by the board of directors, to a class of its shareholders.

Treasury Stock

Shares of a company's own stock held by the company itself, often bought back from shareholders and not considered when calculating earnings per share or dividends.

Retained Earnings

The portion of a company's profits that is not distributed to shareholders as dividends but is kept by the company for reinvestment.