Question
In: Math
12.1 Determine the Pearson product-moment correlation coefficient for the following data. x 1 11 9 7...
12.1 Determine the Pearson product-moment correlation
coefficient for the following data.
|
x |
1 | 11 | 9 | 7 | 5 | 3 | 2 |
|---|---|---|---|---|---|---|---|
|
y |
9 | 4 | 6 | 5 | 7 | 7 | 8 |
(Do not round the intermediate values. Round your
answer to 3 decimal places.)
Correlation coefficient, r = enter the Correlation
coefficient rounded to 3 decimal places
Solutions
Expert Solution
Solution:
| x | y | x2 | y2 | x⋅y |
| 1 | 9 | 1 | 81 | 9 |
| 11 | 4 | 121 | 16 | 44 |
| 9 | 6 | 81 | 36 | 54 |
| 7 | 5 | 49 | 25 | 35 |
| 5 | 7 | 25 | 49 | 35 |
| 3 | 7 | 9 | 49 | 21 |
| 2 | 8 | 4 | 64 | 16 |
 x=38 |
y=46 |
x2=290 |
y2=320 |
xy=214 |
r = n (
xy )- (x
) (y)
/ 
n [ (
x2 ) - (
x )2 ]
[ n (y2
) - (
y )2
r = 7 (214) - (38 * 46)
/ [7 *290 - ( 38 ) 2
[ 7 * 320 - ( 46 ) 2 ]
r = 1498 - 1748 /
2030 - 1444 2240
- 2116
r = 250 / 586124
r = 250 / 269.5626
r = 2656 / 2910.80
r = - 0.9274
.The Correlation coefficient = - 0.927
milcah answered 1 year agoRelated Solutions
1. Determine the Pearson product-moment correlation coefficient for the following data. x 1 11 9 7...
1. Determine the Pearson product-moment correlation coefficient
for the following data.
x
1
11
9
7
4
3
2
y
10
4
4
5
7
7
8
Correlation coefficient, r = enter the Correlation
coefficient rounded to 3 decimal places
2.
People in the aerospace industry believe the cost of a space
project is a function of the mass of the major object being sent
into space. Use the following data to develop a regression model to
predict the cost...
Determine the Pearson product-moment correlation coefficient for the following data. x 1 10 9 8 5...
Determine the Pearson product-moment correlation coefficient for
the following data.
x 1 10 9 8 5 3 2
y 10 4 4 5 7 7 10
(Do not round the intermediate values. Round your
answer to 3 decimal places.)
Correlation coefficient, r = ___
The Y values are actually:
Y 9 4 4 5 7 7 8
Pearson Product-Moment Correlation Coefficient Using the states Module 11 data test whether there is a relationship...
Pearson Product-Moment Correlation
Coefficient
Using the states Module 11 data test whether there is a
relationship between the variable “sex” and the “Disp” score, alpha
= .05. Write the hypotheses. Show a scatterplot of the
correlations between the two variables. Describe the direction and
strength of the correlation. Report the results in APA format.
Submit a copy of your SPSS output.
The States Module 11 Data Test
sex
disp
2
4
1
1
2
1
2
1
1
4
2
1...
Determine the value of the coefficient of correlation, r, for the following data. X 3 6...
Determine the value of the coefficient of correlation,
r, for the following data.
X
3
6
7
11
13
17
21
Y
18
13
13
8
7
7
5
(Round the intermediate values to 3 decimal places.
Round your answer to 3 decimal places.)
r =
1) What is the sum ∑ X Y? 2) What is the Pearson correlation coefficient (r)...
1) What is the sum ∑ X Y?
2) What is the Pearson correlation coefficient (r) for the data
below?
3)If you were to test the Pearson correlation coefficient for
significance, what would be the critical value of t
(alpha=.05)?
4) If you were to test the Pearson correlation coefficient for
significance, what would be the computed value of t
(alpha=.05)?
5)If you were to test the Pearson correlation coefficient for
significance, what would be your conclusion (alpha=.05)?
6) For...
Perform a Pearson Product Moment Correlation on the following comparisons: height vs. weight a = .05/2...
Perform a Pearson Product Moment Correlation on the following
comparisons:
height vs. weight
a = .05/2
Sample Size 30
Problem 1a
Step
1:
Ho: __ _ ___
Ha: __ _ ___
Step 2:
Alpha level = _____
Step 3:
Sampling
distribution is df = _____
Step 4:
Decision
Rule: I will reject the Ho if the |_robs_| value falls at or
beyond
the |_rcrit_| of ____, otherwise I will fail to reject
Step...
Perform a Pearson Product Moment Correlation on the following comparisons weight vs. age a = .01/2...
Perform a Pearson Product Moment Correlation on the following
comparisons
weight vs. age
a = .01/2
Step 1: Ho: __ _ ___ Ha: __ _ ___
Step 2: Alpha level = _____
Step 3: Sampling distribution is df = _____
Step 4: Decision Rule: I will reject the Ho if the |_robs_|
value falls at or beyond the |_rcrit_| of ____, otherwise I will
fail to reject
Step 5: Calculation: \_robs_/ = _____
Step 6: Summary: Since the |_robs_| of...
Conduct a Pearson correlation coefficient test (r) using the following data: A researcher is interested in...
Conduct a Pearson correlation coefficient test (r) using the
following data:
A researcher is interested in studying the relationship between
team fandom and social perception. She asks participants how much
they love the Los Angeles Dodgers and then asks another participant
in the same study how cool they think that person is. The data is
as follows, and is on an 11-point scale:
Participant
Fandom
Perception
A
10
11
B
1
1
C
9
10
D
10
10
E
5...
QUESTION 1 Pearson’s Product-Moment Correlation Coefficient 1. Given the following table answer the questions. &nb
QUESTION 1
Pearson’s Product-Moment Correlation
Coefficient
1. Given the following table answer the
questions.
Score
Respondent X Y x-x (x-x)
2
y-y (
y-y) 2 (
x-x) ( y-y)
A.
Rose 18 92
B.
Bush 36 65
C.
Novicevic 24 91
D.
Vitell
28 85
E.
Walker 25
70
a. Calculate Pearson’s Product Movement
Correlation Coefficient (r). (2 points)
b. Based on the correlation coefficient which
you calculated, in two words how would you
describe the relationship between the two variables in the “test”?
(2 points)
2. PHR Score
Score
Respondent X Y x-x (x-x)
2
y-y (...
QUESTION 1 Pearson’s Product-Moment Correlation Coefficient 1. Given the following table answer the questions. &nb
QUESTION 1
Pearson’s Product-Moment Correlation
Coefficient
1. Given the following table answer the
questions.
Score
Respondent X Y x-x (x-x)
2
y-y (
y-y) 2 (
x-x) ( y-y)
A.
Rose 18 92
B.
Bush 36 65
C.
Novicevic 24 91
D.
Vitell
28 85
E.
Walker 25
70
a. Calculate Pearson’s Product Movement
Correlation Coefficient (r). (2 points)
b. Based on the correlation coefficient which
you calculated, in two words how would you
describe the relationship between the two variables in the “test”?
(2 points)
2. PHR Score
Score
Respondent X Y x-x (x-x)
2
y-y (
y-y)...
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- In the context of risk assessment (RA), assess the value of a business impact analysis (BIA)....
- How am I supposed to implement a c_str method that returns a c string representation of...
- NPV Your division is considering two investment projects, each of which requires an up-front expenditure of...
- Please repond with a 200 word limit paragraph no copy or paste your own words!!! What...
- Participant Reactivity Think about how participants might react to environmental cues in an experimental situation and...
- Describe scenarios when you would use a Fixed-size virutal disk, a Dynamic virtual disk, and a...
- A conductive sphere with radius ? = 1 ? has been increased to the potential ?0...
ADVERTISEMENT