Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_vufgb-regression-009-en_vufgb-regression-009-en
    namevufgb-regression-009-en
    sectionInferential Statistics/Regression, Inferential Statistics/Regression/Dummies, Inferential Statistics/Regression/Equation, Inferential Statistics/Regression/Prediction, Inferential Statistics/Regression/Residuals
    typeschoice
    solutionFALSE, FALSE, FALSE, TRUE
    TypeCalculation
    Program
    LanguageEnglish
    LevelStatistical Thinking

    Question

    An experimental research study evaluating the association between Y = performance, S = dummy variable Sex (girl=1) and G = dummy variable Reward (reward =1) results in the following regression equation:

    Y’=18+4S–2GY’ = 18+4S–2G.

    Amelie is assigned the reward condition and has a performance of 22.

    What is her predicted performance and what is her residual Yi−Y′iY_{i}-Y'_{i}?


    1. FALSE: predicted performance: 18; residual: -2
    2. FALSE: predicted performance: 20; residual: -2
    3. FALSE: predicted performance: 18; residual: +2
    4. TRUE: predicted performance: 20; residual: +2

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