Homework 3
Due February 24, 2011
1.
A student wonders if people of similar heights tend to date each other. She
measures herself, her dormitory roommate, and the women in the adjoining
rooms; then she
This version: September 12, 2016.
POL-UA 800
Quantitative Methods in Political Science
Fall Semester 2016
Cantor Center, 101: Monday, Wednesday, 4:55PM610PM
Prof. Arthur Spirling
19 West 4th St, 405
a
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
No. Lots of possible explanations why use your imagination
Median and mode are both every day
Two parts:
a. IQR = $72,000-24,000 = $48,000
b. $72,000 + (48,000 x 1.5
Homework 9
Due April 21, 2011
Question 1
A social worker randomly selects 28 households with children. He finds a correlation of -.21
between the average weekly work hours of the parents and the happi
Homework 8
Due April 14, 2011
Question 1
Freshmen at public universities work 12.2 hours per week for pay, on average, and the
standard deviation is 10.5 hours. At private universities the mean is 9.2
Homework 7
Due April 7, 2011
Question 1
One large course is broken down into sections with 30 students each. The section
meetings are led by teaching assistants. On the final the mean grade () is 63 a
Homework 6
Due March 31, 2011
Question 1
Soon after he took office in 1963, President Johnson was approved by 160 out of a
sample of 200 Americans. With growing disillusionment over his Vietnam policy
Homework 5
Due March 24, 2011
Question 1
Find the proportion under a standardized normal curve in the following cases:
a) Greater than 1.25
b) Less than -0.40
c) Less than 0.80
d) Between 0.40 and 1.3
Homework 4
Due March 10, 2011
Question 1
A randomly selected American is asked to respond yes, no or maybe to this question: Do you
intend to vote in the next presidential election? The sample space i
Homework 2
Due February 17, 2011
1.
A college Calculus class has 32 students in it. Here are the ages of the students:
18
19
20
22
18
19
20
23
a.
Construct a stem-and-leaf diagram illustrating the age
Homework 1
Due February 10, 2011
1.
Indicate whether the following variables are categorical/ordinal (orderable),
categorical/nominal (non-orderable) or quantitative:
a.
b.
c.
d.
e.
f.
2.
Academic dep
Homework 10
Due April 28, 2011
Question 1
Regression coefficients were calculated for a model with one dependent variable,
POLITY (indicating level of democracy), and six independent variables, GOVEF