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Prof.Martin was interested in which of two popular statistics textbooks (Statistics: It Will Change Your Life and Statistics: Bigger, Better, Stronger) was better for students.Prof.Martin compared the two texts by assigning one text to a section of statistics taught by Prof.Miller from 10 to 11 a.m.on Monday, Wednesday, and Friday, and the other text to a section of statistics taught by Prof.Mervin from 7 to 10 p.m.on Wednesday evenings.At the end of the term, all students took the same comprehensive test.Students to whom Statistics: Bigger, Better, Stronger was assigned performed better on the test than did students to whom Statistics: It Will Change Your Life was assigned.Therefore, Prof.Martin concluded that the former textbook was the better one.What was the dependent variable in this study?
Observed Frequencies
The actual number of occurrences of each possible outcome of a variable recorded in a dataset, often used in the context of chi-square tests and frequency distributions.
Expected Frequencies
The anticipated count of occurrences across different categories in a probability distribution based on a theoretical model.
Alternative Hypothesis
The hypothesis that suggests there is a significant difference or effect, in contrast to the null hypothesis.
Expected Frequency
The theoretical frequency of an event occurring in a set of trials, calculated based on the probability of the event.
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