Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uva-sample-mean-306-en_uva-sample-mean-306-en
    nameuva-sample-mean-306-en
    sectionInferential Statistics/Sampling Distributions/Sample mean
    typeschoice
    solutionFALSE, TRUE, FALSE, FALSE
    TypeConceptual, Calculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    Suppose we draw a sample of size 4 from a normally distributed population with μ = 20 and σ²= 64. The probability that the sample mean is greater than or equal to 24 is equal to


    1. FALSE: 0.0952
    2. TRUE: 0.1587
    3. FALSE: 0.3174
    4. FALSE: 0.3413

    1. 0.0952: Incorrect
    2. 0.1587: Correct
    3. 0.3174: Incorrect
    4. 0.3413: Incorrect