Diana D.

asked • 08/06/19

Confidence Intervals

1.    The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 39.4 for a sample of size 1031 and standard deviation 6.7.

Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 95% 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).

__________ < μ < _________

Answer should be obtained without any preliminary rounding.

1 Expert Answer


Diana D.

thank you! I will be sending a message very soon!


William P.

Glad I could help!


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