Question

why is this anwser incorrect and which one correct?

Incorect Question 37 0/125 pts A car company is interested in testing to see whether the mean miles that a car engine will last without changing oil is the same or different depending on which brand of oil is used. The engineers also wish to control for the type of transmission (manual or automatic) that is used. To conduct this test, the car company obtains enough engines so that all six oil brands can be tested in a design that involves no replication. Based on this information, how many engines will be needed to conduct the test? One for each factor in the study. 12 One for each oil type MacBook Air 20 ODD F4 F2 C F3 FS F7 F8

Answer 1

sclution given tha t The no ot oi brands 4 Thi type of transmission toYEach caY-2 Enain The minimum no of a Enginc uct the test Bccase Each caY ba 2 ransmissns Eitbe manual or automatc and thcu au 4 oil brand jor engioe EDain e