Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_vufgb-confidenceintervals-004-en_vufgb-confidenceintervals-004-en
    namevufgb-confidenceintervals-004-en
    sectionInferential Statistics/Confidence Intervals, Inferential Statistics/Sampling Distributions/Difference two means
    typeschoice
    solutionFALSE, TRUE, FALSE, FALSE
    TypeCalculation, Case, Interpreting output
    LanguageEnglish
    LevelStatistical Thinking

    Question

    We want to investigate whether there is a difference in mood swings between people with and without Huntington’s disease. A random sample of 11 participants is selected from both groups. Then, they are asked to participate in the research. Mood swings are measured on a numerical scale. The results are presented in the table below. Assume equal variances when determining the degrees of freedom for your test statistic. Calculate the 95% confidence interval for the difference in mood swings.


    1. FALSE: (4.59, 8.61)
    2. TRUE: (4.29, 8.91)
    3. FALSE: (4.69, 8.51)
    4. FALSE: (4.13, 9.07)