Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uva-test-488-en_uva-test-488-en
    nameuva-test-488-en
    sectionInferential Statistics/Parametric Techniques/ANOVA/ANOVA F-test
    typeschoice
    solutionFALSE, FALSE, FALSE, TRUE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty3.883
    p-value0.1418

    Question

    We want to test the null hypothesis that two population variances are equal and use the F-test to do so. The sample data are as following:Ê. Sample 1: n = 6, mean = 75, sd = 13. Sample 2: n = 9, mean = 85, sd = 27. The value of the test quantity, and the conclusion are


    1. FALSE: F = 2.08, reject the null hypothesis
    2. FALSE: F = 2.08, do not reject the null hypothesis
    3. FALSE: F = 4.31, reject the null hypothesis
    4. TRUE: F = 4.31, do not reject the null hypothesis

    1. F = 2.08, reject the null hypothesis: Incorrect
    2. F = 2.08, do not reject the null hypothesis: Incorrect
    3. F = 4.31, reject the null hypothesis: Incorrect
    4. F = 4.31, do not reject the null hypothesis: Correct