Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uva-independent-samples-means-346-en_uva-independent-samples-means-346-en
    nameuva-independent-samples-means-346-en
    sectionInferential Statistics/Parametric Techniques/t-test/Independent samples means
    typeschoice
    solutionFALSE, TRUE, FALSE, FALSE
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty3.973
    p-value0.1305

    Question

    Two independent samples were drawn and the following was calculated from them:_____. Sample 1: n = 7, mean = 34, variance = 36. Sample 2: n = 5, mean = 25, variance = 46. The T test for testing H0: μ1 = μ2 has a value of 2.430 here. Which critical value and conclusion regarding TRUE are correct here (α = 10% two-sided)?


    1. FALSE: Critical value is 1.7823, do not reject H0.
    2. TRUE: Critical value is 1.8210, do not reject H0.
    3. FALSE: Critical value is 2.2281, do not reject H0.
    4. FALSE: Critical value is 2.2281, reject H0.

    1. Critical value is 1.7823, do not reject H0…: Incorrect
    2. Critical value is 1.8210, do not reject H0…: Correct
    3. Critical value is 2.2281, do not reject H0…: Incorrect
    4. Critical value is 2.2281, reject H0…: Incorrect