A company wishes to test four different types of tires: A, B, C and B. The tires
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Question:
A company wishes to test four different types of tires: A, B, C and B. The tires lifetimes, as determined from their treads, are given (in thousand of kilometers) in the table below, where each type has been tried on six similar automobiles. Determine whether there is significant difference between the tyres at the
(a) 0.05 level
(b) 0.01 level.
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