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core: 0 of 1 pt 11 of 11 (3 complete) HW Score: 11.36%, 1.25 of 11 pts .3.31 Tutoring Question Help A car company says that the mean gas mileage for its luxury sedan is at least 20 miles per gallon (mpg). You believe the claim is incorrect and find that a random sample of 7 cars has a mean gas mileage of 17 mpg and a standard deviation of 5 mpg. At a = 0.05, test the company's claim. Assume the population is normally distributed. Click here to view the t-distribution table. Click here to view page 1 of the normal table. Click here to view page 2 of the normal table. Which sampling distribution should be used and why? O A. Use a t-sampling distribution because the population is normal, and o is known. O B. Use a normal sampling distribution because the population is normal, and o is unknown. O C. Use a t-sampling distribution because the population is normal, and o is unknown. O D. Use a t-sampling distribution because n 30. your answer and then click Check Answer. Check