3. An urban sociologist interested in neighborliness collected data for a sample of 10 adults on (X) how many years they have lived in their neighborhood and (Y) how many of their neighbors they regard as friends. Compute a Pearson's correlation coefficient for these data and determine whether the correlation is significant. 1 2 3 X 2 2 7 0
3. An urban sociologist interested in neighborliness collected data for a sample of 10 adults on (X) how many years they have lived in their neighborhood and (Y) how many of their neighbors they regard as friends. Compute a Pearson's correlation coefficient for these data and determine whether the correlation is significant. 1 2 3 X 2 2 7 0
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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is significant.
Student
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D
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F
Lee
Ronda
Jess
Evelyn
Mohammed
Steve
George
Juan
Chi
David
X
1
2. A high school guidance counselor is interested in the
relationship between proximity to school and partici-
pation in extracurricular activities. He collects the data.
on distance from home to school (in miles) and num-
ber of clubs joined for a sample of 10 juniors. Using the
following data, compute a Pearson's correlation coeffi-
cient and indicate whether the correlation is significant.
Distance to School Number of Clubs
(miles)
Joined
3
1
5
6
1
8
198 Chapter 10
Dashboard
X
2
Y
1
4
2
1
5
4
2
1
◄ Previous
4
2
7
3
5
1
4
B
X
1
8
9
7
7
10
4
3
2
7
3. An urban sociologist interested in neighborliness
collected data for a sample of 10 adults on (X) how
many years they have lived in their neighborhood
and (Y) how many of their neighbors they regard as
friends. Compute a Pearson's correlation coefficient
for these data and determine whether the correlation
is significant.
X
2
9:43 PM
File Details
PSYC-2317-101
5
9
4
Calendar
2
5
3
4. An economist is interested in studying the relationship
between length of unemployment and job-seeking
3
1
Y
3
2
coefficient for the following data and indicate whether
the correlation is significant.
3
2
5
2
4
3
1
1
9
6
5
8
Y
1
2
6
7
0
0=
whether the correlation is significant.
Accountant
A
B
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To Do
D
E
F
G
H
1
J
K
а
State
A
B
с
D
E
F
G
H
X
7
6
4
5
X
3
6
5
2
7
5
5. A psychiatrist is concerned about his daughter, who
has suffered from extremely low self-esteem and high
anxiety since entering high school last year. Wonder-
ing if many of his daughter's peers have the same.
troubles, he collects a random sample of high school
girls and anonymously asks them how much they
agree or disagree (on a scale from 1 to 7, with 1 be-
ing "strongly disagree" and 7 being "strongly agree")
with the following statements: (X) "I felt better about
myself before I started high school" and (Y) "I have
felt very anxious since I started high school." Com-
pute a Pearson's correlation coefficient for the fol-
lowing data and indicate whether the correlation is
significant.
12
1
10
8
6
5
2
3
6. A new high school special education teacher wonders if
there really is a correlation between reading disabilities
and attention disorders. She collects data from six of her
students on their reading abilities (X) and their attention
abilities (Y), with a higher score indicating greater abil-
ity for both variables. Compute a Pearson's correlation
X
10.4
8.9
13.3
6.9
16.0
✓ 71%
5.2
14.5
15.3
Notifications
4
3
6
Y
8
3
4
2
7
2
5
2
1
5
4
6
7
1
Y
41.7
38.6
43.2
35.7
46.9
33.5
43.3
44.8
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