A car is advertised as having a gas mileage rating of at least 30 miles/gallon in highway driving. The miles per gallon obtained in 10 independent experiments are 26, 24, 20, 25, 27, 25, 28, 30, 26, 33 For the null hypotheses p 2 30, what is the significance level at which it can be accepted. Provide your answer as a real number