Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uva-oneway-anova-274-en_uva-oneway-anova-274-en
    nameuva-oneway-anova-274-en
    sectionInferential Statistics/Parametric Techniques/ANOVA/Oneway ANOVA
    typeschoice
    solutionFALSE, FALSE, TRUE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty4.268
    p-value0.0732

    Question

    Below is the (incomplete) ANOVA table of a CRD-ANOVA (Completely Randomized Design ANOVA), which was performed on data that were collected from 16 individuals divided into 4 groups.

    ————— —– —- —- —– Source of variation SS df MS F Among groups 8.0 Within groups 60 12 Total 180 ————— —– —- —- —–

    For testing H0: μ1 = μ2 = μ3 = μ4 against H1: not all population averages are equal the F value from the ANOVA table is compared with the critical value from the F-distribution. At a risk of 5%, the conclusion should be


    1. FALSE: Critical value is 3.13, reject H0.
    2. FALSE: Critical value is 3.49, do not reject H0.
    3. TRUE: Critical value is 3.49, reject H0.
    4. FALSE: Critical value is 8.74, do not reject H0.

    1. Critical value is 3.13, reject H0…: Incorrect
    2. Critical value is 3.49, do not reject H0…: Incorrect
    3. Critical value is 3.49, reject H0…: Correct
    4. Critical value is 8.74, do not reject H0…: Incorrect