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Confidence Intervals A drug company has introduced a new test for the flu. In a random...

Confidence Intervals

  1. A drug company has introduced a new test for the flu. In a random sample of 150 US adults, the new test is accurate for 125 adults.

    1. Find the 99% confidence interval for the proportion of accurate tests for all US adults.

    2. Interpret the confidence interval in the words of the problem.

    3. Find the error bound.

    4. Does this data and analysis provide evidence so that the company can claim its new test is accurate in more than 80% of all US adults? Justify!

Math   Statistics-And-Probability   
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