Chapter 8 Confidence Intervals (Mean) Progress saved Done Score: 0/14 0/14 answered Question 2 0/1 pt 9 3 The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 81.8 for a sample of size 29 and standard deviation 18.4. Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 98% confidence level). Assume the data is from a normally distributed population. Enter your answer as a tri-linear inequality accurate to three decimal places. Submit