The correct statement is: The cars from Company A have a higher mean highway fuel efficiency than Company B.
Calculating the mean:
Company A: (35 + 28 + 35 + 30 + 31 + 38 + 35 + 30) / 8 = 32.875 mpg
Company B: (29 + 33 + 36 + 27 + 34 + 34 + 34 + 25) / 8 = 31.875 mpg
Therefore, the cars from Company A have a higher mean highway fuel efficiency compared to Company B.