We are interested in whether the number of cylinders (4/6/8) is equally likely for the population of cars. What is the correct null hypothesis?

A. Number of cylinders is independent of type of car for the population of all cars

B. p4=1/3,p6=1/3,p8=1/3p4=1/3,p6=1/3,p8=1/3 where p4p4 for example is the population proportion of cars with 4 cylinders

C. 4=6=84=6=8 where 44 for example is the population mean for cars with 4 cylinders

D. p=0.5p=0.5 where pp is the population proportion of cars with 4 cylinders

E. Cars with 4 cylinders, 6 cylinders, and 8 cylinders is independent for the population of all cars