MTH 114 Spring 2010 - Homework 3
Due Wednesday 2/24/2010
Notes:
1) All exercises are from the PD text, unless indicated otherwise.
2) Red problems must be done in SPSS.
3) You are not required to copy the question, but all written answers (answers that are not graphs) should be in full sentences.



Assigned M 2/15
Textbook Reading:
  • Read Sections 3.4-3.5 of the PD text. (relates to today's class)
  • Read Sections 4.1-4.3 of the PD text. (relates to next class)
    Required exercises (relates to today's class):
  • [10 pts.] Do page 120 exercise 3.36
  • [10 pts.] Do page 122 exercise 3.42
  • [30 pts.] Read and Do Session 3 of the CN text. (You are not required to do the Moving On exercises at the end and they should not be handed in.) While completing the session, use a word processor to type up (in full sentences) your answers to the following questions:
    1) Page 27: Who makes greater use of cars, trucks, or vans: Men or women? Explain your reasoning.
    2) Page 29: Based on this table, would you say that men or women are more likely to commute by car, truck, or van? Explain your reasoning.
    3) Page 29: What do these numbers (row percentages) represent?
    4) Page 30: What can you say about the seat belt habits of these students?
    5) Page 31: Do (the graphs on the bottom of the page) show different information? What impressions would a viewer draw from these graphs?
    6) Page 32: How do the average GPAs of males and females compare? Explain how the graph shows this comparison.
    7) Page 32: How would you describe the shape of (the distribution on the bottom of the page)?
    8) Page 33: What does this graph show about the GPAs of these students? In what ways are they different?
    9) Page 34: Describe what you see in the scatterplot. By eye, approximate the range of weights of students who are 5'2" tall. Roughly how much more do 6'2" students weigh?
    Additional Requirement: When creating the scatterplot on page 34, add your name (first and last) as a footnote. (Review Page 17 paragraph 2 if you forget how to do this.)
    10) Page 34: In what ways is this graph different from the first scatterplot? What additional information does it convey? What generalizations can you make about the heights and weights of men and women? Which points might we consider to be outliers?
    For this exercise, submit your output file from SPSS and the file with the answers to the 10 questions. (Either submit the actual files through the HW3 link in Moodle or submit a printout of these files.)


    Assigned W 2/17
    Textbook Reading:
  • Read Sections 4.1-4.3 of the PD text. (relates to today's class)
  • Read Sections 4.3-4.5 of the PD text. (relates to next class)
    Required Exercises (relates to today's class):
  • Do Page 148 exercise 4.2 [10 pts.]
  • Do Page 151 exercise 4.10 [5 pts.]
  • Do Page 151 exercise 4.12 [10 pts.]
  • Do Page 159 exercise 4.20 [10 pts.] Explain each of the 3 parts in a full, gramatically correct English sentence (for a total of 3 sentences).
  • Do Page 160 exercise 4.22 [15 pts.]



    Last Modified: 2/18/10