The trend line ŷt = 125 + 2t and seasonal indexes shown below were computed from 10 years of quarterly data. Forecast the values for the next four quarters. $$\begin{array} { | c c | }
\hline \text { Quarter } & S I _ { t } \
\hline 1 & 0.6 \
2 & 1.3 \
3 & 1.6 \
4 & 0.5 \
\hline
\end{array}$$

Question

The trend line ŷt = 125 + 2t and seasonal indexes shown below were computed from 10 years of quarterly data. Forecast the values for the next four quarters. $$\begin{array} { | c c | } 
\hline \text { Quarter } & S I _ { t } \
\hline 1 & 0.6 \
2 & 1.3 \
3 & 1.6 \
4 & 0.5 \
\hline
\end{array}$$

Quizplus · Accepted Answer

The Answer of The trend line ŷt = 125 + 2t and seasonal indexes shown below were computed from 10 years of quarterly data. Forecast the values for the next four quarters. $$\begin{array} { | c c | } 
\hline \text { Quarter } & S I _ { t } \
\hline 1 & 0.6 \
2 & 1.3 \
3 & 1.6 \
4 & 0.5 \
\hline
\end{array}$$

The Trend Line ŷT = 125 + 2t and Seasonal Quarter SIt10.621.331.640.5\begin{array} { | c c | } \hline \text { Quarter } & S I _ { t } \\\hline 1 & 0.6 \\2 & 1.3 \\3 & 1.6 \\4 & 0.5 \\\hline\end{array} Quarter 1234​SIt​0.61.31.60.5​​

The Trend Line ŷT = 125 + 2t and Seasonal $\begin{array} { | c c | } \hline \text { Quarter } & S I _ { t } \\\hline 1 & 0.6 \\2 & 1.3 \\3 & 1.6 \\4 & 0.5 \\\hline\end{array}$