A study of the amount of time it takes a mechanic to rebuild the transmission

  • Thread starter Thread starter cassandra d
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cassandra d

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for a 1992 Chevrolet Cavalier sh? A study of the amount of time it takes a mechanic to rebuild the transmission for a 1992 Chevrolet Cavalier shows that the mean is 8.4 hours and the standard deviation is 1.8 hours. If a mechanic is randomly selected, find the probability that the mean rebuild time is less than 7.6 hours.
 
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