Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uu-Critical-value-804-en_uu-Critical-value-804-en
    nameuu-Critical-value-804-en
    sectionInferential Statistics/NHST/Significance level/Critical value
    typeschoice
    solutionFALSE, FALSE, FALSE, TRUE
    TypeInterpretating output
    ProgramSPSS
    LanguageEnglish
    LevelStatistical Literacy

    Question

    In the summer of 2009, 944 military personnel were polled on whether they agreed that they should immediately withdraw from Iraq. According to politicians, “only a quarter of the military” would agree. In the sample, 274 military personnel agreed with this statement. The rest disagreed. Does this data show that the politicians’ distribution of agree/disagree is correct? Test at α=.01\alpha = .01 .


    1. FALSE: TRUE because 2.86 < 3.84 (= critical value)
    2. FALSE: TRUE because 8.16 < 9.21 (= critical value)
    3. FALSE: No, because 0.21 < 0.25 (= critical value)
    4. TRUE: Yes, because 8.16 > 6.63 (= critical value)