1. no work needed, only correct solution. t-distribution table is below this question:

A car company says that the mean gas mileage for its luxury sedan is at least 23 miles per gallon (mpg). You believe the claim is incorrect and find that a random sample of 6 cars has a mean gas mileage of 22 mpg and a standard deviation of 4 mpg. At a = 0.05, test the company's claim. Assume the population is normally distributed. Click here to view the 1-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 normal sampling distribution because the population is normal, and a is O B. Use a 1-sampling distribution because n 30. OF. Use a normal sampling distribution because the population is normal, and a is unknown. State the appropriate hypotheses to test. O A. Ho" us 23 B. Ho: ul 2 23 Hyp > 23 H.: 51,900 Ha: H