few years. The annual revenue, in millions of dollars, for the previous 10 years is shown.
\begin{tabular}{|c|c|}
\hline Year & Revenue \\
\hline 1 & 8.63 \\
\hline 2 & 10.74 \\
\hline 3 & 13.08 \\
\hline 4 & 14.11 \\
\hline 5 & 16.41 \\
\hline 6 & 17.31 \\
\hline 7 & 18.27 \\
\hline 8 & 18.45 \\
\hline 9 & 18.30 \\
\hline 10 & 18.53 \\
\hline
\end{tabular}
(a) Cons
Comment on the appropriateness of a linear trend.
The time series plot shows that a curvilinear trend may be more appropriate.
\( \smile \) The time series plot shows that neither a linear nor a curvilinear trend is appropriate.
The time series plot shows that a linear trend is most appropriate.
(b) Using statistical software, develop a quadratic trend equation that can be used to forecast revenue (in millions of dollars). (Round your numerical values to three decimal places.) \( T_{t}= \) (b) Using statistical software, develop a quadratic trend equation that can be used to forecast revenue (in millions of dollars). (Round your numerical values to three decimal places.)
\[
T_{t}=
\]
(c) Using the trend equation developed in part (b), forecast revenue (in millions of dollars) in year 11. (Round your answer to two decimal places.) \$ million