Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uva-test-442-en_uva-test-442-en
    nameuva-test-442-en
    sectionInferential Statistics/Parametric Techniques/t-test
    typeschoice
    solutionFALSE, TRUE, FALSE, FALSE
    TypeConceptual, Calculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty3.864
    p-value0.1465

    Question

    In a sample of 17 individuals, the Pearson product moment correlation coefficient was calculated between systolic and diastolic blood pressure, resulting in the value 0.845. When testing H0: ρ = 0 (α = 0.05 two-sided), the critical area is equal to


    1. FALSE: < - 0.4555 ; 0.4555 >
    2. TRUE: < - ∞ ; - 0.4555 ] ∪ [ 0.4555 ; + ∞ >
    3. FALSE: < - ∞ ; - 0.4821 ] ∪ [ 0.4821 ; + ∞ >
    4. FALSE: < - ∞ ; - 0.4853 ] ∪ [ 0.4853 ; + ∞ >

    1. < - 0.4555 ; 0.4555 >: Incorrect
    2. < - ∞ ; - 0.4555 ] ∪ [ 0.4555 ; + ∞ >: Correct
    3. < - ∞ ; - 0.4821 ] ∪ [ 0.4821 ; + ∞ >: Incorrect
    4. < - ∞ ; - 0.4853 ] ∪ [ 0.4853 ; + ∞ >: Incorrect