?Miles on an Impala A random sample of 18 three-year-old Chevrolet Impalas was obtained in the St. Louis, Missouri area, and the number of miles on eac
Chapter 15, Problem 12(choose chapter or problem)
Miles on an Impala A random sample of 18 three-year-old Chevrolet Impalas was obtained in the St. Louis, Missouri area, and the number of miles on each car was recorded as follows:
Test the hypothesis that the median number of miles on three year- old Impalas is less than 40,428 miles, the median miles driven over three years nationwide, at the a = 0.05 level of
Significance. Note: A normal probability plot indicates that the data are not normal.
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