Question
In: Statistics and Probability
To compute a Pearson correlation coefficient, data must be measured on an ordinal scale. true or...
To compute a Pearson correlation coefficient, data must be measured on an ordinal scale.
true or false
Scatter plots give a visual representation of the strength and direction of the correlation coefficient
true or false
When you have significant results in data analysis, it is customary to report all relevant means and standard deviations.
true or false
Solutions
orchestra answered 2 years agoRelated Solutions
Compute the Pearson correlation and the values needed to calculate it for the following data. SSx...
Compute the Pearson correlation and the values needed to
calculate it for the following data.
SSx = ?
SSy= ?
SP = ?
r = ?
Please answer to TWO decimal places.
X Y
2 3
3 1
6 5
4 4
a. Describe what the Pearson correlation coefficient is and what the coefficient of determination is. compare...
a. Describe what the Pearson correlation coefficient is and what
the coefficient of determination is.
compare it to a real world example or a example problem
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...
Pearson Correlation Use the Pearson Correlation to analyze the data below. 1. Report the strength (number)...
Pearson Correlation
Use the Pearson Correlation to analyze the data below.
1. Report the strength (number) of the correlation (2
points).
2. Is the correlation statistically significant (alpha .05
two-tailed)? (3 points)
income $
fireworks $
5000
500
10000
450
15000
400
20000
350
25000
300
30000
250
35000
200
40000
150
45000
100
50000
50
55000
25
60000
20
65000
15
70000
10
75000
5
80000
2
85000
1
90000
0
95000
0
100000
0
105000
0
110000
0...
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 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
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...
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
True or False The correlation coefficient of 0.5 indicates a positive association, while a correlation coefficient...
True or False
The correlation coefficient of 0.5 indicates a positive
association, while a correlation coefficient of -0.8 indicates a
negative association.
A researcher rejected the null hypothesis at a 1%
significance level, so the researcher will also reject the null
hypothesis at a significance level of 5%.
When a researcher calculated the 99% confidence
interval, the resulting level of confidence increased as compared
to the 95% interval.
When a researcher calculated the 99% confidence
interval, the resulting range of...
(c) Compute the sample correlation coefficient r for each of the following data sets and show...
(c) Compute the sample correlation coefficient r for each of the
following data sets and show that r is the same for both. (Use 3
decimal places.) (i) x 6 1 9 y 4 2 5
(ii)x 4 2 5 y6 1 9
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