Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uu-Critical-value-808-en_uu-Critical-value-808-en
    nameuu-Critical-value-808-en
    sectionInferential Statistics/NHST/Significance level/Critical value
    typeschoice
    solutionTRUE, FALSE, FALSE, FALSE
    TypeCase
    LanguageEnglish
    LevelStatistical Literacy

    Question

    A researcher wants to compare the political orientation of first-year and fourth-year students. A sample of 10 freshmen and 10 fourth-year students are administered a questionnaire on which a score can be obtained from 0 (very progressive) to 100 (very conservative). Freshmen score an average of 62 with a squared SS = 4800, and fourth-year students score an average of 41 with a squared SS = 4200. Based on a two-sided test with α\alpha = 5% conclude that the political orientation of first- and fourth-year students is significantly different?


    1. TRUE: No, because the test statistic is 2.1 and the critical limits are ±\pm 2.101.
    2. FALSE: Yes, because the test statistic is 2.2 and the critical limits are ±\pm 1.96.
    3. FALSE: Yes, because the test statistic is 2.2 and the critical limits are ±\pm 1.734.
    4. FALSE: Yes, because the test statistic is 2.1 and the critical limits are ±\pm 2.086.