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A group of university students are interested in comparing the average age of cars owned by...

A group of university students are interested in comparing the average age of cars owned by students and the average age of cars owned by faculty. They randomly selected 25 cars that are own by students and 20 cars that are owned by faculty. The average age and standard deviation obtained from the students’ cars are 6.78 years and 5.21 years, respectively. The sample of faculty cars produced a mean and a standard deviation of 5.86 years, and 2.72.

At α = 0.05, is there enough average to conclude that on average faculty cars are newer than students’ cars? Use the p-value method

Math   Statistics-And-Probability   
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