Question
In: Statistics and Probability
If you wanted to examine the correlation between rank in high school and rank in college,...
If you wanted to examine the correlation between rank in high school and rank in college, which procedure would you use? What is the difference between multiple regression and simple linear regression?
Solutions
Expert Solution
If you wanted to examine the correlation between rank in high school and rank in college, which procedure would you use?
Least square linear regression is the best statistical method of find the correlation between two variables.The correlation coefficeint (r) measure the strength of the linear relationship between two variables.
The two requirements for computing correlation coefficient: There should be two variables(quantitative) and their relationship must be linear
What is the difference between multiple regression and simple linear regression?
orchestra answered 2 years agoRelated Solutions
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Is there a linear correlation between students' high
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1. Let's try to test this claim by using the survey.
Assume that alpha is 0.05.
2. What is the equation of the regression
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3. What is the best-predicted GPA if the high school
GPA is 3.5?
High School
College
3
3.89
3.3
2.7
3.5
3.5
3
3.7
3.5
3.5
3.89
3.7
4
4
3
3...
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How are linear correlation and rank correlation alike? How are linear correlation and rank correlation different?
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Use the data to assess the correlation between hours studying per week in High School and...
Use the data to assess the correlation between hours studying
per week in High School and SAT score. Interpret the result and
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High School hours per week
SAT Score
15
1500
10
1250
2
850
11
1350
0
780
5
810
6
900
10
1100
16
1450
2
810
Test for correlation between Barley and Corn prices using Spearman's rank correlation method, at the 0.05...
Test for correlation between Barley and Corn prices using
Spearman's rank correlation method, at the 0.05 significance
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Barley
Rank
Corn
Rank
d
d^2
4.89
4
3.21
1
3
9
4.52
1
3.22
2
-1
1
4.85
2
3.29
4
-2
4
4.97
6
3.23
3
3
9
5.12
9
3.33
5
4
16
4.91
5
3.4
6
-1
1
5.08
8
3.44
8
0
0
4.98
7
3.49
9
-2
4
4.87
3
3.43
7
-4
16
A company wanted to know if there is correlation between the demands and supply, data was...
A company wanted to know if there is correlation between
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follows:
demand
20
30
40
50
60
supply
15
25
35
45
55
1-Using the formula for the sample correlation
coefficient to evaluate the strength of the linear relationship.
2- Correlation Significance Test at α=0.05
T(0.05; 9 )
T(0.05; 7)
T(0.025;7)
T(0.025; 9)
1.833
1.895
2.365
2.262
A researcher decides to examine whether there is a correlation between cost of a packet of...
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nearest dollar) and degree of customer satisfaction (on a scale of
1 - 10 with a 1 being not at all satisfied and a 10 being extremely
satisfied). A sample of the data is provided below.
Dollars (X)
Satisfaction (Y)
11
6
18
8
17
10
15
4
9
9
5
6
12
3
19
5
22
2...
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. A
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in exam for students: 3, 4, 6, 7, 8, 10, 9, 8, 3, 6, 5, 4, 6, 6, 3,
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relative frequency, and accumulative...
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