12. Assume that the average passenger vehicle in a given geographical location emits 401 grams of CO2 per mile, with a standard deviation of 106 grams per mile. A researcher wants to test a claim that vehicle emissions are less than that during holidays (H0: 401,Ha: <401) and they take a sample of n=55 and get an average of XX = 384.7. Find the test statistic and compute the p-value for this hypothesis test.

p-value (to four decimals) =