11. A major automobile manufacturer claimed that the frequencies of repairs on all five models of its cars are the same. A sample of 200 repair services showed the following frequencies on the various makes of cars.
Model of Car A B C D E
Frequency 32 45 43 34 46
At  = 0.05, test the manufacturer's claim.

Question

11.	A major automobile manufacturer claimed that the frequencies of repairs on all five models of its cars are the same.  A sample of 200 repair services showed the following frequencies on the various makes of cars.
Model of Car	A	B	C	D	E
Frequency	32	45	43	34	46
At  = 0.05, test the manufacturer's claim.

kokilasharma · Answer

hi square4.25<9.87
x2=2.25>2.23
do not reject ho, no difference critical x2=9.488