QueSLIOIL D A public health official in St. Lucie county needs to estimate the average systolic blood pressure of all residents in St. Lucie county for a report that is being prepared for the Florida Department of Health. The official randomly selected 39 St. Lucie county residents and found that the mean systolic blood pressure of the sample was 110 millimeters of mercury (mm Hg). Using a 95% confidence level, determine the margin of error, E, and a confidence interval for the mean systolic blood pressure of all St. Lucie county residents. From past research, it is known that the standard deviation of the distribution of all St. Lucie county residents' systolic blood pressure is 9 mm Hg. Report the confidence interval using interval notation. Round solutions to two decimal places, if necessary. The margin of error is given by E = A 95% confidence interval is given by Question Help: D Video