Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uva-simple-linear-regression-138-en_uva-simple-linear-regression-138-en
    nameuva-simple-linear-regression-138-en
    sectionInferential Statistics/Regression/Simple linear regression
    typeschoice
    solutionFALSE, FALSE, TRUE
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty5.376
    p-value0.0057

    Question

    In a regression analysis, the explanatory variable x has a standard deviation that is twice that of the response variable y. Furthermore, the slope b of the regression line has the value 0.4. The correlation between x and y is then equal to


    1. FALSE: 0.2
    2. FALSE: 0.4
    3. TRUE: 0.8

    1. 0.2: Incorrect
    2. 0.4: Incorrect
    3. 0.8: Correct