14 18 The Framingham Heart Study recorded the systolic blood pressure SBP of 3 534 adults and reported a 95 confidence interval for the population mean SBP of 126 7 to 127 9 mm Hg The correct interpretation for this confidence interval is that we are 95 confident that a the adults in this sample have SBP values between 126 7 and 127 9 mm Hg b adults in the population have SBP values between 126 7 and 127 9 mm Hg c the population mean SBP is a value between