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Sagot :
According to the given hypothesis, the experiment was conducted based on the observational study.
Hypothesis:
in statistics, the statement of expectation or prediction that will be tested by research is known as hypothesis.
Given,
Here we have a study was conducted to determine if drinking a cup of tea before bedtime helped with falling asleep faster. after randomly assigning 50 people to one group that received tea before bedtime and 50 other people to a group that did not receive tea before bedtime, the researcher then compared the amount of time it took for each person to fall asleep.
Now, we need to find the type of study used in the given study.
While we looking into the given question, we know that they researchers must study the group of 100 people sleeping patter.
Here the total amount is divided into two parts, the first group who is taken tea before bed and the second one is not.
Here the researchers observe the behavior of the people. So, these type of research fall under the observational study concept.
To know more about Hypothesis here.
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