Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uva-confidence-level-356-en_uva-confidence-level-356-en
    nameuva-confidence-level-356-en
    sectionInferential Statistics/Confidence Intervals/Confidence level
    typeschoice
    solutionFALSE, FALSE, TRUE, FALSE
    TypeConceptual
    LanguageEnglish
    LevelStatistical Literacy
    IRT-Difficulty4.234
    p-value0.0794

    Question

    From a normally distributed population with expectation μ, a sample is drawn. Using this, H0: μ = 20 is tested (with α = 5%) and a 95% confidence interval for μ established. Which of the following two statements are TRUE? 1: If H0 is rejected, the value 20 is in the confidence interval.Ê 2: The sample mean is always in the confidence interval.


    1. FALSE: Assertions 1 and 2 are both correct.
    2. FALSE: Assertion 1 is true, assertion 2 is false.
    3. TRUE: Assertion 1 is false, assertion 2 is true.
    4. FALSE: Assertions 1 and 2 are both false.

    1. Assertions 1 and 2 are both correct: Incorrect
    2. Assertion 1 is correct, assertion 2 is incorrect: Incorrect
    3. Assertion 1 is incorrect, assertion 2 is correct: Correct
    4. Assertions 1 and 2 are both incorrect: Incorrect