Assignment 1 Question 18 of 20 (1 point) | Question Attempt: 1 of 1 Determine whether an observational study or an experimental study is used. A survey of college students was taken to see how many hours a student sleeps per night. Experimental Observational \( \square \)
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- An observational study involves observing and recording data without manipulating any variables. - An experimental study involves manipulating one or more variables to observe the effect on other variables. Show more…
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