Interstate Speeds It has been reported that the standard deviation of the speeds of drivers on Interstate 75 near Findlay, Ohio, is 8 miles per hour for all vehicles. A driver feels from experience that this is very low. A survey is conducted, and for 30 drivers the standard deviation is 9.9 miles per hour. At a=0.05, Is the driver correct? Assume the variable is normally distributed. Part 1 of 5 (a) State the hypotheses and Identify the claim with the correct hypothesis. Ho 8 not claim H: >8 claim This hypothesis test is a one-tailed test.