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Does coffee make cramps worse?

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Our expiremental unit is 500 women from the ages of 20 to 30. They are all single and any race.

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We are going to a college to ask how old each women is. If they are in our age group we will continue with the study if they’d like to be in our expirement for four months.

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Our treatments will be 250 women get coffee. Then 250women get water. It is cofee vs. water.

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Our explanatory variables is coffee vs. water.

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The response variable which we are measuring is whether cramp pains have gotten worse or not.

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Our crossover design is put in place because our two groups of 250 each have to go through both processes, in which a detoxing is taken place before the new treatment is brought onto the other group.

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Our experiment is showing 75% of women studied had results of worse cramp pain while drinking coffee on their menstrual cycle compared to drinking water. This would be useful information to gynecologists helping to reduce cramp pains.

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Lurking variables would be weight, age, diet, medications, and they may not be on the same cycle.

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This is not a blind or double-blind experiment because the subjects know that they are drinking either coffee or water

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At the end of the experiment, the subjects reported feeling more fatigued when just drinking water and also felt small or moderate cramps while on their periods. On the other hand, when drinking coffee while on their period, the women felt increased pain from their cramps.

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The control group/placebo is the groups of women that just drink water while on their period.

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Every two months we will give the groups a different treatment. We will use the same people so our data is based on the pain of each same person as the treatment they took before.

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After 4 months of treatments, our women have came back changed. They know what to drink, and what not to drink on their period. All around now they are spreading the word that coffee/ caffeine in fact makes cramps worse. Money was definitely made in this study, for we have websites contacting us to add this study onto their page. The women are now telling people about how easy our study was, even coming back to us saying "this has really helped me take control of the pain! Thank you!" -Jenny, 25.

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Our sample size is 500 women between 20 and 30 years old.
our margin of error is calculated by 1/ √500 x100 which equals the margin of error at 4.5%. Our margin of error is good because it is close to 0. This is because our sample size is a large number, so our MOE is small.

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For our financial cost, we will make a list keeping track of every amount our experimental women used to buy either their coffee or water on their period week and when the testing is over we will pay them in full money back. We will offer them $50 just to start, for their period can only last from 4-7 days and its a 4 month treatment, 4 periods each women.