Exam 1

  1. Metainformation

    Tag Value
    fileDescriptive-statistics_uva-standard-deviation-490-en_uva-standard-deviation-490-en
    nameuva-standard-deviation-490-en
    sectionDescriptive statistics/Summary Statistics/Measures of Spread/Standard Deviation
    typeschoice
    solutionTRUE, FALSE, FALSE, FALSE
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty4.195
    p-value0.0856

    Question

    Of 5 nurses, their attitudes before and after a given intervention was measured with the following results:______ BEFORE: 46, 38, 30, 42, 41. AFTER: 43, 43, 37, 39, 45. The estimated standard deviation of the mean difference between the post-measurement and pre-measurement is equal to:


    1. TRUE: 2.1
    2. FALSE: 2.35
    3. FALSE: 4.2
    4. FALSE: 4.69

    1. 2.1: Correct
    2. 2.35: Incorrect
    3. 4.2: Incorrect
    4. 4.69: Incorrect