Claim The mean systolic blood pressure of all healthy adults is less than than 118 mm Hg Sample data For 270 healthy adults the mean systolic blood pressure level is 117 77 mm Hg and the standard deviation is 14 85 mm Hg The null and alternative hypotheses are Ho 118 and H 118 Find the value of the test statistic The value of the test statistic is Round to two decimal places as needed ave