The manufacturer of the Ososki motorcycle advertises that the cycle will average 87 miles per gallon of gasoline. A sample of eight bikes revealed the following mileage:
88, 82, 81, 87, 80, 78, 79, 89
At the .05 level, is the meanmileage less than the advertised 87 miles per gallon?
This Solution contains calculations to aid you in understanding the Solution to this question.