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Backpack Investigation Model Compare and analyze data

Backpack Investigation Model Compare and analyze data . Are student backpacks too heavy ?. What’s the question to investigate?. Ideas: Do students at my school carry backpacks that are too heavy? Who carries heavier backpacks? Do heavy backpacks cause pain for students at my school?

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Backpack Investigation Model Compare and analyze data

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  1. Backpack Investigation ModelCompare and analyze data Are student backpacks too heavy?

  2. What’s the question to investigate? Ideas: Do students at my school carry backpacks that are too heavy? Who carries heavier backpacks? Do heavy backpacks cause pain for students at my school? How many students carry overstuffed backpacks?

  3. My question example Which grade level is at the most risk for carrying too heavy of backpacks? My hypothesis—6th graders

  4. What is the sample?

  5. What is the sample size? Questions to consider: Will you have enough time to gather the data from your sample? Will your sample be large enough to be representative? Will your sample help you answer your question? Do you have – or can you borrow – the scales or other materials to collect the data?

  6. What is the collection plan?

  7. My data collection procedure My group will collect weights of 60 students—20 students each from 6th, 7th, and 8th grade. We will ask our Assistant Principals for permission to use the stage at breakfast time. We will set up 4 scales on the stage. Students will be chosen at random from the grade sections where they sit. Each member in my group will record data for 15 students. We will record more information just in case we want to look at more data.

  8. My sample data Data in Excel

  9. My graph choices

  10. Data Analysis

  11. Conclusion Based on the data, we see the mean and median of the 6th graders are higher than the other grades. There is also more variability in the data for 6th grade, which means there are many students who are carrying backpacks that are far from what is recommended by doctors. The box plots and bar graph show clearly that 6th graders carry too heavy of backpacks. My suggestion for helping 6th graders is to have an assembly with some doctors who can show them the results of heavy backpacks and to have their teachers assign homework to clean them out every week.

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