Statistics A Tool for Social Research and Data Analysis 11e Joseph
F. Healey Christopher Donoghue
ANSWERS TO EVEN-NUMBERED COMPUTATIONAL PROBLEMS
CHAPTER 1
1.4
a Nation of birth Nominal Discrete
b Age I-R Continuous
c Years of school I-R Continuous
d Occupation Nominal Discrete
e Class Ordinal Discrete
f GPA I-R Continuous
g Major Nominal Discrete
h Legalized Drugs? Ordinal Discrete
i Astrological sign Nominal Discrete
j Number of siblings I-R Continuous
1.6
a Infant mortality rates Dependent I-R Continuous
% of adults allowed to vote Independent I-R Continuous
b Before / after Independent Nominal Discrete
Traffic volume Dependent I-R Discrete
Number of accidents Dependent I-R Discrete
Number of fatalities Dependent I-R Discrete
c Before / after Independent Nominal Discrete
Survey Dependent I-R Discrete
d Frequency of harassment Dependent Ordinal Discrete
Age Independent I-R Continuous
Major Independent Nominal Discrete
e Type of pick up Independent Nominal Discrete
Number of complaints Dependent I-R Discrete
Time Dependent I-R Continuous
Cost Dependent I-R Continuous
f Race / ethnicity Independent Nominal Discrete
Tolerance Dependent Ordinal Discrete
g Budget cuts Independent Nominal Discrete
Size of homeless population Dependent I-R Discrete
h Sex Independent Nominal Discrete
Philosophy Independent Nominal Discrete
Major Independent Nominal Discrete
Support / Oppose closing Dependent Ordinal Discrete
, Number of visits Dependent I-R Discrete
Does porn cause rape? Dependent Ordinal Discrete
1.8
abany Ordinal Discrete
abpoor Ordinal Discrete
age I-R Continuous1
attend Ordinal Discrete
cantrust Ordinal Discrete
cappun Ordinal Discrete
childs I-R (but note high score is “8 or more) Discrete
class Ordinal Discrete
concong Ordinal Discrete
degree Ordinal Discrete
educ I-R Discrete
fear Ordinal Discrete
fefam Ordinal Discrete
fepol Ordinal Discrete
grass Ordinal Discrete
gunlaw Ordinal Discrete
happy Ordinal Discrete
helpblk Ordinal Discrete
homosex Ordinal Discrete
hrs1 I-R Continuous1
1. Variables that measure time could be measured at any level of precision
CHAPTER 2
2.2
a 46.59%
b 0.0983/15
c 83:15 = 5.53
d 56.67%
e 412:315 = 1.31
f 0.34
g 1.79%
h 178:98 = 1.82
i 30:32 = 0.94
j 0.17
2.4
State 1997 2017 % Change
, New Jersey 4.20 3.60 -14.28
Iowa 1.82 4.21 131.07
Alabama 10.29 9.02 -12.28
Texas 6.83 5.19 -24.04
California 7.99 4.59 -42.53
Province 1997 2017 % Change
Nova Scotia 2.56 1.15 -55.31
Quebec 1.80 0.98 -45.12
Ontario 1.56 1.85 18.81
Manitoba 2.72 4.07 49.31
British Columbia 2.90 1.78 -38.56
2.10
Response Time, 2000 Frequency (f) Percentage
21 minutes or more 20 2.29
16–20 minutes 90 10.29
11–15 minutes 185 21.14
6–10 minutes 370 42.29
Less than 6 minutes 210 24.00
875 100.00
Response Time, 2019 Frequency (f) Percentage
21 minutes or more 45 5.03
16–20 minutes 95 10.61
11–15 minutes 155 17.32
6–10 minutes 350 39.11
Less than 6 minutes 250 27.93
895 100.00
CHAPTER 3
3.2
Variable
Enrollment Mean = 1219.25
Racial / Ethnic Group Mode = White
% College Bound Mean = 47.63
Sport Mode = Football
Physical Plant Median = 6.5 , Mean = 6.75