question archive A new gasoline substitute has been developed
A new gasoline substitute has been developed
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A new gasoline substitute has been developed. An experiment is to be conducted to determine whether the new gas gives a better gas mileage to older vehicles than newer models, it was determined that car models are associated with gas mileage, but car color is not. How would blocking best be used? (1 point)
By blocking on car color
By blocking on car model
By blocking on mileage
By blocking on gas type
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correct option is ---
By blocking on the car model
Step-by-step explanation
Here we want to test the significance of the color of the car keeping the model constant.
So, the best blocking will be the car model.
