Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uva-inferential-statistics-120-en_uva-inferential-statistics-120-en
    nameuva-inferential-statistics-120-en
    sectionInferential Statistics
    typeschoice
    solutionFALSE, TRUE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2.037
    p-value0.5616

    Question

    In a sample with size n = 120, the sample mean has a error that is smaller than that in a sample with size n = 30. How many times smaller?


    1. FALSE: √2 times
    2. TRUE: 2 times
    3. FALSE: 4 times

    1. √2 times: Incorrect
    2. 2 times: Correct
    3. 4 times: Incorrect