For problems 7 and 8, an auto manufacturer claims that the average length of time that...

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For problems 7 and 8, an auto manufacturer claims that the average length of time that one of its cars is owned before it req

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Given data: ll= 7 = 6 D=10 x=5 / -0.05 7 Hollis? Ha. 127 of its cars is owned before it is at least seven years. o = 1.8 df =

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