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20 randomly selected statistics students were given 15 multiple-choice questions and 15 open-ended questions - all on the same material. the professor was interested in determining which type of questions the students scored higher. this experiment is an example of a one sample test of means. a two sample test of means. a paired t-test. a test of proportions.

Respuesta :

I think that this an example of a paired t test. Since each student (subject) is given 2 treatments of the same material. 

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