$1.$ Using regression, estimate the attribute coefficients for each of the five remaining respondents. You will need to code the X matrix of independent variables. For your analysis, treat the brand and engine variables as categorical. For the brand attribute, treat Honda as the baseline. For the engine attribute treat the $165$ HP Hybrid as the baseline. Treat the price attribute as a continuous variable.

$2.$ For each respondent $($i$.$e$.,$ all $10$ respondents$),$ determine the relative importance of each attribute. On average, what is most important attribute across the $10$ respondents?

$3.$ For each respondent $($i$.$e$.,$ all $10$ respondents$)$ compute the WTP for the Nissan and Toyota brands $($relative to Honda$)$ and the WTP for the $200$HP V$6$ and $170$HP V$4$ engines $($relative to the $165$ HP Hybrid$).$ Report the average WTP across respondents.