Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uu-Confidence-Intervals-801-en_uu-Confidence-Intervals-801-en
    nameuu-Confidence-Intervals-801-en.Rmd
    sectionInferential Statistics/Confidence Intervals
    typeschoice
    solutionTRUE, FALSE, FALSE, FALSE
    TypeConceptual, Case
    LanguageEnglish
    LevelStatistical Literacy

    Question

    A researcher conducts an intelligence test among 36 students who received a special training for this test. In the population the mean for this intelligence test is 100 with a standard deviation of 24 with normally distributed scores. The students who were given the special training have a sample mean of 110.

    What is the 99% confidence interval for the sample mean?


    1. TRUE: <99.7; 120.3>
    2. FALSE: <102.2; 117.8>
    3. FALSE: <89.7; 110.3>
    4. FALSE: <62.5; 158.5>

    1. This answer is correct.
    2. This answer is incorrect.
    3. This answer is incorrect.
    4. This answer is incorrect.