Estimate the linear probability model ecobuy = 0 + 1 ecoprc + 2 regprc + 3 faminc + 4 hhsize +5educ + 6age + u and report the results in the usual form. Carefully interpret the coefficients on the price variables (ecoprc and regprc). 3. Are the nonprice variables (faminc, hhsize, educ, age) jointly significant in the model? Which explanatory variable other than the price variables seemsthe most important effect on the decision to buy ecolabeled apples? Does it make sense to you