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Which of the following facts should make you the most worried about the reliability of the results of the test in this case?
The 112 students were all students in a chemical engineering course and not a random sample from the entire student body.
Two of the six observed counts are less than 5.
Not all of the cells' contributions to the chi-squared statistic are greater than 1.
Two of the six expected counts are less than 5.
ANSWER:
