$4\mathrm{.}1.$ Use the general calculation rules given on page $44$ of the Sabre Online Student Guide $($and my lectures$)$ to determine the best attribute levels, as expressed in their original $($unstandardized$)$ scales, for both speed and complexity for both of your new R&Ds$.$ Both attributes are highly important to the customers$$ purchase decision$-$making. Briefly show your calculation process. Use your own best judgment to determine the ideal points on these two attributes for the two segments from reading this figure. The ranges of the original attribute levels for speed and complexity, for the purpose of this final exam, are $77$ to $154($for speed$)$ and $24$ to $93($for complexity$),$ respectively. $(10$ points$)$