Topic 1 Answers

Activity 1-1: Types of Variables
Question (a):
gender - category(binary)
political identification - category
penny question - category(binary)
value of statistics - measurement
number of states visited - measurement
number of countries visited - measurement
whether or not one has been to Europe - category(binary)
whether or not one has been to Walt Disney World - category(binary)
letters per word: measurement
Question (b): category
Question (c): measurment

Activity 1-2: Penny thoughts
Question (a): For 1998-1999
17 people responded. 6 abolish penny, 11 retain penny, proportion of 11/17 = .648 to retain penny
Question (b): For 1998-1999: 6 abolish and proportion of 6/17 = .352
Question (c): For 1998 - 1999

Question (d): For 1998-1999: In this set of data, there seems to be a tendency to wanting to keep the penny

Activity 1-4: Value of Statistics
Results For 1998-1999
Rating 1 2 3 4 5 6 7 8 9
Tally (count) 0 0 0 0 4 5 6 1 1
% of values 0.0 0.0 0.0 0.0 23.53 29.41 35.29 5.88 5.88


Activity 1-5: Gender of Physicians
Specialty Percent of Women Specialty Percent of Women Specialty Percent of Women
1. Aerospace Medicine 5.93 2. Allergy & Immunology 16.04 3. Anesthesiology 18.37
4. Cadiovascular disease 5.55 5. Child Psychiatry 35.45 6. Color/rectal surgery 3.34
7. Dermatology 24.09 8. Diagonostic radiology 16.80 9. Emergency medicine 15.25
10. Family Practice 19.05 11. Forensic pathology 23.17 12. Gastronenterology 6.39
13. General practice 11.24 14. General preventive medicine 24.43 15. General surgery 7.22
16. Internal Medicine 21.79 17. Neurological surgery 3.24 18. Neurology 16.75
19. Nuclear Medicine 15.74 20. Obstetrics/gynecology 25.61 21. Occupational medicine 11.55
22. Opthalmology 10.60 23. Orthopedic surgery 2.49 24. Otolaryngology 5.86
25. Pathology-anat./clin. 24.44 26. Pediatric cardiology 20.29 27. Pediatrics 41.01
28. Physical med./rehab. 30.10 29. Plastic surgery 7.12 30. Psychiatry 24.80
31. Public health 24.14 32. Pulmonary diseases 8.84 33. Radiation oncology 18.79
34. Radiology 9.99 35. Thoracic surgery 1.42 36. Urological surgery 1.71


Activity 1-6 (a) height - measurement
(b) armspan - measurement
(c) ratio of height to armspan - measurement
(d) time spent sleeping last night - measurement
(e) whether of not the individual went tosleep before or after midnight - categorical (binary)
(f) numerical score (out of 100 possible points) on the first exam in a course - measurement
(g) whether or not the individual scores at least 70 points on the first exam in your course - categorical (binary)
(h) distance from home - measurement
(j) whether the individual owns a credit card - categorical (binary)

Activity 1-7
(a) whether a spun penny lands "heads or tails" - categorical (binary)
(b) the color of a Reese's Pieces candy - categorical
(c) the number of calories in a fast food sandwich - measurement
(d) the life expectancy of a nation - measurement
(e) whether an American household owns or does not own a cat - categorical (binary)
(f) the number of years that a faculty member has been at a college - measurement
(g) the comprehensive fee charged by a college - measurement
(h) For who an American voted in the 1992 Presidentail election - categorical
(i) whether or not a newborn baby tests HIV-positive - categorical (binary)
(j) the running time of an Alfred Hitchcock movie - measurement
(k) the age of an American penny - measurement
(l) the weight of an automobile - measurement
(m) whether an automobile is foreign or domestic to the U.S. - categorical (binary)
(n) the classification of an automobile as small, midsize, or large - categorical
(o) whether or not an applicant for graduate school is accepted - categorical (binary)
(p) the occupational background of a Cival War general - categorical
(q) whether or not an American child lives with both parents - categorical (binary)
(r) whether a college student has abstained from the use of alcohol the past month - categorical (binary)
(s) whether or not a participant in a sprt sufffers an injury in a given year - categorical (binary)
(t) a sport's injury rate per 1,000 participants - measurement
(u) a state's rate of automobile thefts per 1,000 residents - measurement
(v) the airfare to a selected city from Harrisburg, Penn. - measurement
(w) the average low temperature in January for a city - measurement
(x) the age of a bride on her wedding day - measurement
(y) whether the bride is older, youngers, or the same age as the groom in a wedding couple - categorical
(z) the difference in ages (groom's age minus bride's age) of a wedding couple - measurement

Activity 1-8
For 1998-1999 only:
(a) Conservative -> 3/17 =17.65% Moderate -> 11/17 = 64.71% Liberal -> 3/17 = 17.65%
(b)

(c) For this class it would seem that the majority is moderate in their beliefs, with symmetry with respect ot all other respects.