Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uva-independent-samples-means-407-en_uva-independent-samples-means-407-en
    nameuva-independent-samples-means-407-en
    sectionInferential Statistics/Parametric Techniques/t-test/Independent samples means
    typeschoice
    solutionFALSE, FALSE, FALSE, TRUE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty3.758
    p-value0.1619

    Question

    From two samples randomly drawn from two populations, the following is known:Ê. Sample 1: n = 10, mean = 56, s.d. = 9. Sample 2: n = 5, mean = 64, s.d. = 20. When testing whether the population variances are equal, the value of the test quantity and the corresponding conclusion (at 10% risk two-sided) equal to


    1. FALSE: 2.22, not significant
    2. FALSE: 2.22, significant
    3. FALSE: 4.94, not significant
    4. TRUE: 4.94, significant

    1. 2.22, not significant: Incorrect
    2. 2.22, significant: Incorrect
    3. 4.94, not significant: Incorrect
    4. 4.94, significant: Correct