Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uva-bayesian-statistics-839-en_uva-bayesian-statistics-839-en
    nameuva-bayesian-statistics-839-en
    sectionInferential Statistics/Bayesian Statistics
    typeschoice
    solutionFALSE, TRUE, 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 0.80 and specificity 0.90. The probability of a traveler contracting the disease is 0.07. What is the probability that someone who the instrument says has the disease actually has WBF leads?


    1. FALSE: 0.25
    2. TRUE: 0.38
    3. FALSE: 0.82

    1. 0.25: Incorrect
    2. 0.38: Correct
    3. 0.82: Incorrect