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

Question

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

Quizplus · Accepted Answer

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

The Trend Line y~t\tilde { y } _ { t }y~​t​

The Trend Line $\tilde { y } _ { t }$