Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uva-sample-mean-161-en_uva-sample-mean-161-en
    nameuva-sample-mean-161-en
    sectionInferential Statistics/Sampling Distributions/Sample mean
    typeschoice
    solutionFALSE, TRUE, FALSE
    TypeCalculation
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty2
    p-value0.5905

    Question

    The variable age is skewed in the population of psychology students distributed with mean 26.5 and standard deviation 9.2. What is the probability that in a random sample of 30 individuals a mean age less than 25 is found?


    1. FALSE: 0.19
    2. TRUE: 0.44
    3. FALSE: 0.56

    1. 0.19: Incorrect
    2. 0.44: Correct
    3. 0.56: Incorrect