e$.$ Estimate a log$-$linear model for the data. What is the estimated model $?$

f$.$ What is the own$-$price elasticity of gasoline in the log$-$linear model?

g$.$ Are the coefficients of PnewC, PusedC significant at $99\%?$

Pg $=$ Price of gasoline in each market

G $=$ Total Gasoline Demanded in each market

PnewC $=$ Price of new car

PusedC $=$ Price of used car

Ppt $=$ Price of public transportation

Pd $=$ Price of durable goods

Pnd $=$ Price of non$-$durable goods

Ps $=$ Price of all other services

Obs $=27$ markets

Income $=$ Household per$-$capita income