A researcher predicts that watching a film on institutionalization

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A researcher predicts that watching a film on
institutionalization

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• A researcher predicts that watching a film on
  institutionalization will change students
  attitudes about chronically mentally ill
  patients. The researcher randomly selects a class
  of 36 students, shows them the film, and gives
  them a questionnaire about their attitudes. The
  mean score on the questionnaire for these 36
  students is 70. The score for people in general
  on this questionnaire is 75, with a standard
  deviation of 12. Using the five steps of
  hypothesis testing and the 5 significance level

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