First "Tools" World Activity: Building a Model
1. Press on the "Tinker" icon on your computer’s desktop.
2. Save the file on your computer’s desktop.
3. Work according to the guidelines bellow.
4. Upon completion, save the file in the suitable folder.
Remember to save your work every few minutes!
Planning the "machine"
1. What is the research question you posed about the sample of 72 cases and what are the inferences you formulated from the data?
2. In a new TinkerPlots file: Drag the "data building machine" (Sampler) from the top menu. Change the number of sampled properties from Draw 2 to Draw 1.
With the machine, describe how the year-long behavior looks like, in your opinion, in relation to the research question that you explored (use one of the tools from the bottom ruler of the machine to create the description of each of the properties that relates to your research question)
3. Explain in your own words what does the machine describe?
4. Does the machine you built represent the population? Explain:
Second "tools" world activity: Generating samples and comparing between samples
Part 1: First sample
Now with the help of the "Sampler", generate a random sample of 72 cases from the machine that you built (press "RUN") and add a graph of the sample you got
1. Analyze the data of the first sample you got with the purpose of examining what inferences you can formulate about the research question you posed
2. What characterizes the sample you generated?
3. To what extent do the results in the sample you generated represent the Radon’s year-long behavior? Explain.
Part 2: generating multiple samples and comparing them
Generate from the machine another sample size 72
4. What characterizes the sample you generated?
In what ways is it similar to the previous sample you generated?
In what ways is it different from the previous sample you generated?
5. To what extent do the results in the sample represent the behavior of the population you built in the machine? Explain.
6. If you will generate another sample, what will it, in your opinion, show? To what extent will its results be similar to the population you built in the machine?
7. Generate several additional samples size 72, compare them to the previous samples. Describe how you compared between them?
8. What did you learn from generating the samples about the behavior of random samples size 72?
9. During the process of generating the samples, did you encounter any surprising or unexpected results? What were they and why were they surprising?
10. To what extent do you believe that we can learn from samples size 72, that were sampled from the population you built in the machine? Explain.
11.Can we learn about our research question about the Radon’s year-long behavior, with a sample of 72 cases? Explain.