Claim: Carzz Magazine claims that the Civic Hybrid gets less than 38 mpg on the highway. A random sample of 15 revealed a mean of 37.39 mpg and a sample standard deviation of 4.94. Use the traditional...

Claim: Carzz Magazine claims that the Civic Hybrid gets less than 38 mpg on the highway.


A random sample of 15 revealed a mean of 37.39 mpg and a sample standard deviation of 4.94. Use the traditional method at a 10% significance level to test the claim.