Exam 1

  1. Metainformation

    Tag Value
    fileInferential_Statistics_uu-Independent-samples-means-805-en_uu-Independent-samples-means-805-en
    nameuu-Independent-samples-means-805-en.Rmd
    sectionInferential Statistics/Parametric Techniques/t-test/Independent samples means
    typeschoice
    solutionFALSE, FALSE, TRUE, FALSE
    TypeInterpretating output
    LanguageEnglish
    LevelStatistical Literacy

    Question

    Twenty-five women between ages 70 and 80 were randomly selected from the general population of women their age to take part in a special program to increase their knowledge of dementia. After the course, the women had an average knowledge score of 25. The mean knowledge for the general population of women of this age group is 22, with a standard deviation of 4. Assume that the mean knowledge of dementia in the population is normally distributed. Use the .05 level of significance. The researcher uses the following research question: Does the special program increase women’s knowledge of dementia?

    Does this study support the idea that the course increases knowledge on dementia?


    1. FALSE: No, because the result is statistically significant.
    2. FALSE: No, because the result is not statistically significant.
    3. TRUE: Yes, because the result is statistically significant.
    4. FALSE: Yes, because the result is not statistically significant.