Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uva-confidence-level-805-en_uva-confidence-level-805-en
    nameuva-confidence-level-805-en
    sectionInferential Statistics/Confidence Intervals/Confidence level
    typeschoice
    solutionTRUE, FALSE, FALSE
    TypeConceptual, Calculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty3.992
    p-value0.1248

    Question

    Suppose a researcher wants to compare multiple averages. To do so, she calculates multiple confidence intervals. To ensure that the overall confidence level remains 0.95, she uses a higher confidence level (for example, 0.99) to calculating each individual confidence interval a higher confidence level (for example, 0.99). One method for doing this is


    1. TRUE: The Bonferroni method.
    2. FALSE: The Wilcoxon method.
    3. FALSE: The Kruskal-Wallis method.

    1. The Bonferroni method..: Correct
    2. The Wilcoxon method: Incorrect
    3. The Kruskal-Wallis method: Incorrect