Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uva-confidence-level-104-en_uva-confidence-level-104-en
    nameuva-confidence-level-104-en
    sectionInferential Statistics/Confidence Intervals/Confidence level
    typeschoice
    solutionFALSE, FALSE, TRUE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty3
    p-value0.311

    Question

    Suppose a researcher has four averages for which she wants to calculate multiple comparison Tukey confidence intervals wants to calculate. With four averages a total of six possible differences between averages and therefore six confidence intervals. For comparison, the researcher also calculates comparison also calculates the ordinary 95% confidence intervals. Two of these ordinary 95% confidence intervals are (3; 7) and (12; 16). What are now possible Tukey 95% confidence intervals that correspond to the above two ordinary confidence intervals?


    1. FALSE: (3.5; 6.5) and (12.5; 15.5).
    2. FALSE: (4; 6) and (12.5; 15.5).
    3. TRUE: (2.5; 7.5) and (11.5; 16.5).

    1. (3.5; 6.5) and (12.5; 15.5)…: Incorrect
    2. (4; 6) and (12.5; 15.5)…: Incorrect
    3. (2.5; 7.5) and (11.5; 16.5): Correct