Assignment 1 Part A:
ID Numbers Of The Sample Size Of 30:
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1. 44003
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16. 41079
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2. 43303
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17. 10226
|
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3. 35974
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18. 40518
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4. 11893
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19. 32609
|
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5. 10030
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20. 41231
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6. 34244
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21. 15234
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7. 24711
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22. 32561
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8. 38674
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23. 29296
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9. 20935
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24. 10625
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10.12728
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25. 7388
|
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11.13060
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26. 6532
|
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12 4080
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27. 1009
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13. 19750
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28. 35282
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14. 27112
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29. 11492
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15. 37061
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30. 23723
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|
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Gender Class Hours Work Loans CC Debt Sequence Sample(Sequence) Sort(Sample(Sequence)) var10
Male 4 14 18 16047 6588 1 44003 1009
Male 4 15 0 14974 0 2 43303 4080
Female 4 18 0 17930 8262 3 35974 6532
Female 4 14 14.5 16427 0 4 11893 7388
Male 3 17 0 0 3222 5 10030 10030
Female 1 11 0 0 1047 6 34244 10226
Female 1 15 0 4263 0 7 24711 10625
Female 4 16 0 16852 6841 8 38674 11492
Female 1 15 0 3721 1343 9 20935 11893
Female 1 18 0 0 1295 10 12728 12728
Female 4 15 0 0 2957 11 13060 13060
Female 4 16 0 17084 5913 12 4080 15234
Female 1 15 0 0 1199 13 19750 19750
Male 3 14 0 11679 0 14 27112 20935
Male 2 8 33 0 2622 15 37061 23723
Female 3 16 0 0 2299 16 41079 24711
Female 1 15 0 2396 1211 17 10226 27112
Female 2 15 0 7553 1935 18 40518 29296
Male 1 16 0 0 1438 19 32609 32561
Male 4 5 38 15336 3475 20 41231 32609
Female 3 12 26.5 12676 2093 21 15234 34244
Female 1 14 0 3277 1037 22 32561 35282
Female 4 3 34 15526 4673 23 29296 35974
Female 4 18 0 0 3731 24 10625 37061
Female 4 16 12.5 16149 14841 25 7388 38674
Female 3 16 9.5 0 3329 26 6532 40518
Female 1 12 18 3872 1058 27 1009 41079
Female 3 16 16 0 2608 28 35282 41231
Female 3 15 0 0 3482 29 11492 43303
Female 2 15 0 7552 0 30 23723 44003
Respond to the following items.
1. In Part A of this assignment, you selected a random sample of 30 StatCrunch U students and created a StatCrunch file containing data from the above survey for those students. You will use the StatCrunch data file you created in Part A to complete this assignment. Following the instructions at the end of Part A, paste your StatCrunch data file in the space below.
2a. State a question related to a categorical variable that can be answered using your survey data and the techniques you have studied thus far in this course. You are encouraged to develop your own question, but you may use an appropriate question from the StatCrunch website. The question you use should be about the entire population of StatCrunch U students-not just about those in the sample. Assume that your sample is representative of the population.
Assignment Questions:
Here are a few questions (there are many more) to consider about the StatCrunchU student population:
1. What is the proportion of females at StatCrunchU? Determine a range of plausible values for this proportion. Is this proportion significantly larger than 0.5?
2. How are the students distributed across the classes of Freshman (1), Sophomore (2), Junior (3) and Senior (4)? Does the proportion of females change across the classes?
3. What does the distribution of credit hours look like? Does the mean number of credit hours per student appear to be significantly below 15 hours? Does the distribution of credit hours appear to be impacted by gender or class?
4. What is the proportion of students at StatCrunchU that work? For those that do work, characterize the distribution of the number of hours worked per week. For those students that work, also describe the relationship between the number of hours worked per week and the number of credit hours taken. Does this relationship appear to differ for full time students (enrolled in 12 or more credit hours) and part time students (enrolled in less than 12 credit hours)?
5. What is the proportion of students at StatCrunchU that have loans? For those that do have loans, characterize the distribution of the loan amounts. Do gender and/or class have an impact on the distribution of loan amount? For students that work, is there a relationship between the amount of loans they have and the number of hours per week that they work?
6. What is the proportion of students at StatCrunchU that have credit card debt? For those students who have credit card debt, does the amount of credit card debt appear to be influenced by any one or any combination of the other variables?
b. Explain the methodology you will use to answer the question you posed. Your explanation should include answers to the following questions. Do not include your analysis or answers to your question here-only describe how you will do the analysis.
- What is the variable of interest?
- What graphical techniques will you use to describe your data?
- Why are those techniques appropriate? Why did you choose them?
c. Carry out the methodology described in b above. Use StatCrunch and paste copies of the graphs/charts from StatCrunch in the space below.
d. Based on the results of b and c above, answer your question. Include an explanation of how you used the graphs and charts to formulate your answer.
3a. State a question related to a numerical variable that can be answered using your survey data and the techniques you have studied thus far in this course. You are encouraged to develop your own question, but you may use an appropriate question from the StatCrunch website. The question you use should be about the entire population of StatCrunch U students-not just about those in the sample. Assume that your sample is representative of the population.
b. Explain the methodology you will use to answer the question you posed. Your explanation should include answers to the following questions. Do not include your analysis or answers to your question here-only describe how you will do the analysis.
- What is the variable of interest?
- What graphical techniques will you use to describe your data?
- Why are those techniques appropriate?
- Why did you choose them?
- What numerical measures will you use to describe your data?
- Why are those measures appropriate? Why did you choose them?
c. Carry out the methodology described in b above. Use StatCrunch and paste copies of the graphs/charts and numerical summaries from StatCrunch in the space below.
d. Based on the results of b and c above, answer your question. Include an explanation of how you used the graphs, charts, and numerical summaries to formulate your answer.