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 (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 90% confidence interval for mean SBP.

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