• Product testingDownload .TXT file Open in Data Desk ?Link
  • Methods: Nonparametric Methods, Comparing Two Groups
  • Source: invented data
  • Number of Cases: 22
  • Story:

    A company is producing and marketing
    new reading activities for elementary school children that
    it believes will improve reading comprehension scores. A
    researcher randomly assigns third graders to an eight-week
    program in which some will use these activities and others
    will experience traditional teaching methods. At the end of
    the experiment, both groups take a reading comprehension
    exam. Do these results suggest that the new activities
    are better?

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