maihubert12 maihubert12
  • 06-01-2023
  • Mathematics
contestada

The average fuel efficiency of a new car model is 30 mpg with a standard
deviation of 4 mpg. A simple random sample of 100 cars of this new car model is
to be selected and the sample mean fuel efficiency is to be computed. Explain
why the sampling distribution of the mean has approximately a normal
distribution.

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