Systolic blood pressure levels above 120 mm Hg are considered to be high. For the 300 systolie blood pressure levels listed in Data Set 1 Body Dat" fo Appendix B. the mean is 122.96000 mm Hg and the standard deviation is 15.85169 m Hi Use a 0.01 significance level to test the claim that the sample is from a population with a mes greater than 120 mm Hg.