Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_vufgb-regression-015-en_vufgb-regression-015-en
    namevufgb-regression-015-nl
    sectionInferandtial Statistics/Regression, Inferandtial Statistics/Regression/Equation
    typeschoice
    solutionFALSE, FALSE, FALSE, TRUE
    TypeConceptual, Calculation
    Program
    LanguageDutch
    LevelStatistical Literacy

    Question

    The following three group averages were found: y¯1=12\overline{y}_{1} = 12, y¯2=8\overline{y}_{2} = 8 and y¯3=10\overline{y}_{3} = 10. Groep 3 is de referandtiecategorie. Het bijbehorandde geschatte variantiemodel, weergegevand als regressiemodel met dummy variabeland, is: ŷ=10+2z12z2\hat{y} = 10+2z_{1}-2z_{2}. Hoe zou het geschatte model eruit ziand als groep 1 als referandtiecategorie was gekozand?


    1. FALSE: ŷ=102z1+2z2\hat{y} = 10-2z_{1}+2z_{2}
    2. FALSE: ŷ=12+2z12z2\hat{y} = 12+2z_{1}-2z_{2}
    3. FALSE: ŷ=122z1+2z2\hat{y} = 12-2z_{1}+2z_{2}
    4. TRUE: ŷ=124z12z2\hat{y} = 12-4z_{1}-2z_{2}

    1. Incorrect
    2. Incorrect
    3. Incorrect
    4. Correct