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The study group increased their sleep by an average of 3 hours each night and fell asleep in nearly half the average time!

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The sample size of this study was 200 high school students with a reported past of insomnia. Our margin of error was 7.07. This may seem high and some researchers would not approve of a margin of error this high, the fact that there isn’t a high population of high school students with insomnia caused the sample sized to be smaller. The data still shows to be statistically significant despite this.

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This experiment is Blind since the subjects will not know what is being measured or which treatment they are taking. This is not a double blind because the research team knows which treatments the subjects are using and they know what is being measured. It’s important to be a blind study to prevent any lurking variables from affecting the gathered data.

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So the sample of this experiment will be taking both treatments. This is to eliminate any possible lurking variables and to ensure the data is accurate.

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We randomly found 200 high school students who suffer from insomonia
50 freshman, 50 sophomores, 50 juniors & 50 seniors.

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We used random block design by picking 50 students from each year of high school. To select them we used srs by using a list of students that are selected by a random computer generator.

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To replicate this experiment you could survey and study a different school and use the same experimental design to find the same answer and receive the same data as our study.

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The control group would be all of the students the first night of the study since they had no music to replicate a normal night of sleep.

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We let the 200 students sleep the first night with no classical music and the second night with classical music. Data was recorded each night.

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We measured how long each student slept after given the treatments of listening to classical music or not.

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Our explanatory variable was which treatment each unit received, with or without classical music.

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Does listening to classical music cause humans to sleep longer?