An article in Obesity Research "Impaired pressure natriuresis in obese youths," (2003, Vol. 11, pp. 745–751) described a study in which all meals were provided for 14 lean boys for three days followed by one stress test (with a video-game task). The average systolic blood pressure (SBP) during the test was 118.3 mm HG with a standard deviation of 9.9 mm HG. Construct a 97.5% one-sided upper confidence interval for mean SBP. Assume population is approximately normally distributed.