Using data from $1988$ for houses sold $in$ Istanbul, Turkey, the following equation relates

housing price $(price,in$ thousands dollars$)to$ the distance from a recently built garbage

incinerator $(dist,inkm)$:

$\{\begin{array}{ccc}\text{:}[log(& \text{p}\text{r}\text{i}\text{c}\text{e})=9\mathrm{.}40+0\mathrm{.}312log(\text{d}\text{i}\text{s}\text{t}& )]\\ n=135,& R^2=0\mathrm{.}162\end{array}$

$a.$ Interpret the coefficient $on$ dist

$b.Do$ you think simple regression provides $an$ unbiased estimator $of$ the ceteris paribus elasticity $of$ price with respect $to$ dis?