J 1

3) Descriptive statistics on variables measured in a sample of a n=3,539 participants attending the 7th examination of the offspring in the Framingham Heart Study are shown below: Characteristic Sample Mean Standard Deviation ($] Systolic Blood Pressure 3 531 127:3 190 Diastolic Blood Pressure 3.532 740 99 Total Serum Cholesterol 3.310 200 3 36.6 Weight 3.506 174.4 36 7 Height 3 326 65.957 3 749 Body Mass Index 3.326 28.15 5.32 The Z value for 95% confidence is Z=1.96. Calculate the 95% confidence interval