https://padlet.com/tagra697/63bukk0pn72n Unit 4 - Experimental Study - Prob/Stats - Spring 2019 - Trenton Graybeal and Connor Dilyard en-us 2019-04-15 17:52:25 UTC 2026-01-21 03:15:20 UTC hello@padlet.com https://padlet.com/tagra697/63bukk0pn72n/wish/351757158 Does drinking coffee with caffeine affect your sleep if you drink it at different times of the day?]]> 2019-04-15 18:03:01 UTC https://padlet.com/tagra697/63bukk0pn72n/wish/351757158 https://padlet.com/tagra697/63bukk0pn72n/wish/351757733 30 randomly picked high school students.]]> 2019-04-15 18:04:18 UTC https://padlet.com/tagra697/63bukk0pn72n/wish/351757733 https://padlet.com/tagra697/63bukk0pn72n/wish/351760083 We divided the 30 high school students into 3 groups consisting of 10 students. One groups gets no coffee, another group gets one cup of caffinated coffee, the last group gets one cup of caffeinated coffee in the AM and PM. ]]> 2019-04-15 18:08:58 UTC https://padlet.com/tagra697/63bukk0pn72n/wish/351760083 https://padlet.com/tagra697/63bukk0pn72n/wish/351761086 How much caffeine the high school student is receiving in a day.]]> 2019-04-15 18:11:18 UTC https://padlet.com/tagra697/63bukk0pn72n/wish/351761086 https://padlet.com/tagra697/63bukk0pn72n/wish/351761562 How much sleep the high school student is getting each night.]]> 2019-04-15 18:12:16 UTC https://padlet.com/tagra697/63bukk0pn72n/wish/351761562 https://padlet.com/tagra697/63bukk0pn72n/wish/351763870 We went to the local high school in our area and had the principle to give us permission to give us the list of all the students (9-12) and run these test. We randomly selected the students from the list and we didn’t know them.]]> 2019-04-15 18:17:27 UTC https://padlet.com/tagra697/63bukk0pn72n/wish/351763870 https://padlet.com/tagra697/63bukk0pn72n/wish/351764760 We will replicate this experiment by going to a different high school far from the last one and run the same exact study and change nothing so it’s not different, only the students and high school.]]> 2019-04-15 18:19:40 UTC https://padlet.com/tagra697/63bukk0pn72n/wish/351764760 https://padlet.com/tagra697/63bukk0pn72n/wish/351767073 Our control group is the group that isn’t receiving any type of coffee or caffeine. In this experiment we don’t have a placebo, as nobody in this experiment isn’t receiving anything fake.]]> 2019-04-15 18:25:14 UTC https://padlet.com/tagra697/63bukk0pn72n/wish/351767073 https://padlet.com/tagra697/63bukk0pn72n/wish/351768702 We aren’t able to blind our students because they will know if they are drinking coffee or not. They will also be able to talk to one another when their at school. There can’t be double blind in this experiment either because our team is only two people and we’ll have to see the students we put in each group.]]> 2019-04-15 18:29:58 UTC https://padlet.com/tagra697/63bukk0pn72n/wish/351768702 https://padlet.com/tagra697/63bukk0pn72n/wish/351770026 We had the principle give us the list of all the students at the high school. We listed all the students from 001-800 and randomly selected the 30 students. Some lurking variables of this experiment are the selected students weight, metabolism rate, and their diet. These lurking variables can impact the effect of the caffeinated coffee.]]> 2019-04-15 18:33:43 UTC https://padlet.com/tagra697/63bukk0pn72n/wish/351770026 tagra697 https://padlet.com/tagra697/63bukk0pn72n/wish/352380507 Our sample size is 30 randomly selected individuals, giving us a margin of error at 18.3%. This margin of error is a little high, and the experiment could be repeated with a larger sample size in order to get a more accurate result.]]> 2019-04-17 17:56:08 UTC https://padlet.com/tagra697/63bukk0pn72n/wish/352380507 tagra697 https://padlet.com/tagra697/63bukk0pn72n/wish/352382116 2019-04-17 18:00:18 UTC https://padlet.com/tagra697/63bukk0pn72n/wish/352382116 tagra697 https://padlet.com/tagra697/63bukk0pn72n/wish/352383611 After one week, the group with no coffee averaged 8.6 hours of sleep per night, the group with one cup in the morning averaged 7.9 hours, and the group with one in the morning and evening averaged 6.8 hours. All three groups got decent amounts of sleep, but the group with no coffee got the most.]]> 2019-04-17 18:03:46 UTC https://padlet.com/tagra697/63bukk0pn72n/wish/352383611 tagra697 https://padlet.com/tagra697/63bukk0pn72n/wish/352384817 The highest difference in hours of sleep is 1.8 hours, making these results statistically significant as clearly drinking more coffee resulted in less sleep.]]> 2019-04-17 18:06:19 UTC https://padlet.com/tagra697/63bukk0pn72n/wish/352384817 tagra697 https://padlet.com/tagra697/63bukk0pn72n/wish/352385655 Our results were published and our experiment was replicated with a larger sample size with the same results. The more coffee you drink, the less sleep you will get at night. ]]> 2019-04-17 18:08:30 UTC https://padlet.com/tagra697/63bukk0pn72n/wish/352385655