Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uva-simple-linear-regression-148-en_uva-simple-linear-regression-148-en
    nameuva-simple-linear-regression-148-en
    sectionInferential Statistics/Regression/Simple linear regression
    typeschoice
    solutionFALSE, FALSE, TRUE
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty4.553
    p-value0.0155

    Question

    The quantitative variables x and y have a standard deviation equal to sx = 2 and sy = 4. The correlation coefficient has the value 0.80. Then in the regression equation y = a + bx, the value of b is equal to


    1. FALSE: 0.40
    2. FALSE: 0.80
    3. TRUE: 1.60

    1. 0.40: Incorrect
    2. 0.80: Incorrect
    3. 1.60: Correct