Question: A car advertisement asserts that with the new collapsible bumper system, the average body repair cost for the damages sustained in a collision impact of

A car advertisement asserts that with the new collapsible bumper system, the average body repair cost for the damages sustained in a collision impact of 10 miles per hour does not exceed $1500. To test the validity of this claim, 5 cars are crashed into a stone barrier at an impact force of 10 miles per hour and their subsequent body repair costs are recorded. The mean and the standard deviation are found to be $1620 and $90, respectively. Do these data strongly contradict the advertiser's claim?

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