Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uva-bayesian-statistics-838-en_uva-bayesian-statistics-838-en
    nameuva-bayesian-statistics-838-en
    sectionInferential Statistics/Bayesian Statistics
    typeschoice
    solutionTRUE, FALSE, FALSE
    TypeConceptual, Calculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    A diagnostic tool for the rare tropical disease Waldorps Black Fever (WBF) has sensitivity 0.90 and specificity 0.80. The probability of a traveler contracting the disease is 0.01. What is the probability that someone who the instrument says has the disease actually has WBF leads?


    1. TRUE: 0.04
    2. FALSE: 0.14
    3. FALSE: 0.24

    1. 0.04: Correct
    2. 0.14: Incorrect
    3. 0.24: Incorrect