Answer:
a. The services of a commercial painter in painting the family home.
No, Not Included , As no monetary/payment transaction is involved for service provided.
b. An auto dealer’s sale of a new car to a non-business customer.
Included , As the sale of car has happened to the final consumer
c. The money received by Smith when she sells her biology textbook to a used-book buyer.
Not included , as nothing new is produced in the economy
d. The publication and sale of a new economics textbook.
Included , As new books are produced in the economy
e. A $2 billion increase in business inventories.
Included, as this new inventory is produced during this year.
f. Government purchases of newly produced aircraft.
Included , As it's production took place this year and government is final consumer.