Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uva-simple-linear-regression-772-en_uva-simple-linear-regression-772-en
    nameuva-simple-linear-regression-772-en
    sectionInferential Statistics/Regression/Simple linear regression
    typeschoice
    solutionTRUE, FALSE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty5.39
    p-value0.0046

    Question

    In a regression analysis, the explanatory variable x has a standard deviation that is twice as small as 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. TRUE: 0.2.
    2. FALSE: 0.4.
    3. FALSE: 0.8.

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