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Solution: As part of the study described in Problem 6, investigators wanted to assess the accuracy of self-reported smoking status. Participants are asked

Question: As part of the study described in Problem 6, investigators wanted to assess the accuracy of self-reported smoking status. Participants are asked whether they currently smoke or not. In addition, laboratory tests are performed on hair samples to determine the presence or absence of nicotine. The laboratory assessment is considered the gold standard, or the truth about nicotine consumption. The data are shown in Table 5-13.

  1. What is the sensitivity of the self-reported smoking status?
  2. What is the specificity of the self-reported smoking status?

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