The quarterly earnings of a large microcomputer company have been recorded for the years 2011-2014.These data (in millions of dollars)are shown in the accompanying table.
$$\begin{array}{l}
\text { Year }\
\begin{array} { | c | c c c c | }
\hline \text { Quarter } & 2011 & 2012 & 2013 & 2014 \
\hline 1 & 60 & 65 & 68 & 74 \
2 & 75 & 83 & 85 & 90 \
3 & 93 & 98 & 102 & 106 \
4 & 62 & 69 & 71 & 75 \
\hline
\end{array}
\end{array}$$ Use an appropriate moving average to measure the quarterly variation by computing the seasonal (quarterly)indexes.

Question

The quarterly earnings of a large microcomputer company have been recorded for the years 2011-2014.These data (in millions of dollars)are shown in the accompanying table.
 $$\begin{array}{l}
\text { Year }\
\begin{array} { | c | c c c c | } 
\hline \text { Quarter } & 2011 & 2012 & 2013 & 2014 \
\hline 1 & 60 & 65 & 68 & 74 \
2 & 75 & 83 & 85 & 90 \
3 & 93 & 98 & 102 & 106 \
4 & 62 & 69 & 71 & 75 \
\hline
\end{array}
\end{array}$$ Use an appropriate moving average to measure the quarterly variation by computing the seasonal (quarterly)indexes.

Quizplus · Accepted Answer

The Answer of The quarterly earnings of a large microcomputer company have been recorded for the years 2011-2014.These data (in millions of dollars)are shown in the accompanying table.
 $$\begin{array}{l}
\text { Year }\
\begin{array} { | c | c c c c | } 
\hline \text { Quarter } & 2011 & 2012 & 2013 & 2014 \
\hline 1 & 60 & 65 & 68 & 74 \
2 & 75 & 83 & 85 & 90 \
3 & 93 & 98 & 102 & 106 \
4 & 62 & 69 & 71 & 75 \
\hline
\end{array}
\end{array}$$ Use an appropriate moving average to measure the quarterly variation by computing the seasonal (quarterly)indexes.

The Quarterly Earnings of a Large Microcomputer Company Have Been