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Indy 500 Qualifier Speeds The speeds in miles per hour of seven randomly selected qualifiers for the Indianapolis500(in2012) are listed below. Estimate the mean qualifying

Indy

500

Qualifier SpeedsThe speeds in miles per hour of seven randomly selected qualifiers for the Indianapolis500(in2012) are listed below. Estimate the mean qualifying speed with90% confidence. Round your answers to at least four decimalplaces.

222.929

223.422

223.684

224.037

225.172

226.240

226.484

__<<_

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