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2) High blood pressure has been identified as a risk factor for heart attacks and strokes....

2) High blood pressure has been identified as a risk factor for heart attacks and strokes. The National Health and Nutrition Survey reported that 12 out of 38 randomly selected US adults had high blood pressure.

a) State the conditions and verify they are met.

b) Draw a sketch. Find the indicated values for a 90% (beta to two decimal places) confidence interval, showing all work and reporting 5 decimal places for all other calculations.

c) Interpret your confidence interval in the context of the problem.

d) The Center for Disease Control and Prevention reports that 32% of all US adults have high blood pressure. Based on your confidence interval, is there evidence to support the CDC claim? Justify your answer.

Math   Statistics-And-Probability   
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