Systolic blood pressure levels above

120

mm Hg are considered to be high. For the

100

systolic blood pressure levels listed in the accompanying data set, the mean is

123.08000

mm Hg and the standard deviation is

15.83353

mm Hg. Assume that a simple random sample has been selected. Use a

0.10

significance level to test the claim that the sample is from a population with a mean greater than

120

mm Hg.