The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systalic blood pressure is 82.8 for a sample of size 754 and standard...

The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systalic blood pressure is 82.8 for a sample of size 754 and standard deviation 14.7.

Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 90% confidence level).

Enter your answer as a tri-linear inequality accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).