Which method? Which of the following scenariosshould be analyzed as paired data?a) Students take a MCAT prep course. Their before andafter scores are compared. b) 20 male and 20 females students in class take a mid-term. We compare their scores. c) A group of college freshmen are asked about the qual-ity of the university cafeteria. A year later, the same students are asked about the cafeteria again. Do stu-dent’s opinions change during their time at school?

MATLAB: An Introduction with Applications
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Which method? Which of the following scenarios
should be analyzed as paired data?
a) Students take a MCAT prep course. Their before and
after scores are compared.
b) 20 male and 20 females students in class take a mid-
term. We compare their scores.
c) A group of college freshmen are asked about the qual-
ity of the university cafeteria. A year later, the same
students are asked about the cafeteria again. Do stu-
dent’s opinions change during their time at school?
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