Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uva-test-96-en_uva-test-96-en
    nameuva-test-96-en
    sectionInferential Statistics/Parametric Techniques/t-test
    typeschoice
    solutionTRUE, FALSE, FALSE
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty4.053
    p-value0.1021

    Question

    To test the effect of oxytocin on reaction time, 25 subjects twice; once with oxytocin and once without. Each subject has to press the button when a clown appears on the screen. Then difference scores of the 25 subjects are calculated. The average of difference scores is 5 and the standard deviation is 10. The null hypothesis is that there is no difference in reaction time between having or not having oxytocin in the blood. There is no idea for the alternative hypothesis about the direction of the effect. This null hypothesis may


    1. TRUE: Not be rejected at 0.01 but can be rejected at 0.02.
    2. FALSE: Not be rejected at 0.02 but be rejected at 0.05.
    3. FALSE: Not be rejected at 0.05 but be rejected at 0.10.

    1. Not be rejected at 0.01 but be rejected at 0.02.: Correct
    2. Not be rejected at 0.02 but be rejected at 0.05.: Incorrect
    3. Not be rejected at 0.05 but be rejected at 0.10.: Incorrect