A group of researchers wanted to measure the impact of playing classical music at bedtime to infants. They choose 20 infants to play music from 6:30 7:30 pm at bedtime and 20 infants to not play music at all. For each day for 3 months they observed them for 4 hours and recorded exactly how long it took for them to fall asleep. At the end of the 3 months they calculated the percentage of awake time to the time they slept for the 4 hours and compared the percentages to infants that had music played versus infants that did not. None of the answer choices Experimental Survey Observational Study A group of researchers wanted to measure the impact of playing classical music at bedtime to infants . They choose 20 infants to play music from 6:30 7:30 pm at bedtime and 20 infants to not play music at all . For each day for 3 months they observed them for 4 hours and recorded exactly how long it took for them to fall asleep . At the end of the 3 months they calculated the percentage of awake time to the time they slept for the 4 hours and compared the percentages to infants that had music played versus infants that did not . None of the answer choices Experimental Survey Observational Study

Question

09-07-2022
Mathematics

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A group of researchers wanted to measure the impact of playing classical music at bedtime to infants. They choose 20 infants to play music from 6:30 7:30 pm at bedtime and 20 infants to not play music at all. For each day for 3 months they observed them for 4 hours and recorded exactly how long it took for them to fall asleep. At the end of the 3 months they calculated the percentage of awake time to the time they slept for the 4 hours and compared the percentages to infants that had music played versus infants that did not. None of the answer choices Experimental Survey Observational Study A group of researchers wanted to measure the impact of playing classical music at bedtime to infants . They choose 20 infants to play music from 6:30 7:30 pm at bedtime and 20 infants to not play music at all . For each day for 3 months they observed them for 4 hours and recorded exactly how long it took for them to fall asleep . At the end of the 3 months they calculated the percentage of awake time to the time they slept for the 4 hours and compared the percentages to infants that had music played versus infants that did not . None of the answer choices Experimental Survey Observational Study

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joaobezerra joaobezerra · Answer 1 · 2022-07-15T17:36:26+02:00

Using statistical concepts, it is found that it is an experimental study, as the music played corresponds to an experiment.

What is an experimental study?

It is an study where an intervention is applied to a sample, and the effect of this intervention is studied.

In this problem, the music played is the intervention, and it's effect on the time that it takes for the infants to be asleep, hence it is an experimental study.

More can be learned about experimental studies at https://brainly.com/question/24321224

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