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Researchers are interested in studying whether the number of hours a person sleeps at night is correlated with the number of caffeinated beverages a person

Researchers are interested in studying whether the number of hours a person sleeps at night is correlated with the number of caffeinated beverages a person consumes each day.

What analysis will the researchers run to answer their research question?

a. t-test

b. ANOVA

c. chi square

d. correlation

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