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
Is there a linear correlation between students' high school GPA and their current GPA( College GPA)?...
Is there a linear correlation between students' high
school GPA and their current GPA( College GPA)? Here is the link to
our survey
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
line?
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...
Suppose that you as a researcher wanted to examine the impact of police officer rank on...
Suppose that you as a researcher wanted to examine the impact of
police officer rank on perceptions of friendliness by citizens in
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captain, and citizen perception is captured by a scale ranging from
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How are linear correlation and rank correlation alike? How are linear correlation and rank correlation different?
How are linear correlation and rank correlation alike?
How are linear correlation and rank correlation different?
How are linear correlation and rank correlation alike?How are linear correlation and rank correlation different?
How are linear correlation and rank correlation alike?
How are linear correlation and rank correlation different?
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
give the conclusion.
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
level.
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
the demands and supply, data was collected for a nine month as
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...
A researcher decides to examine whether there is a correlation
between cost of a packet of chocolate chip cookies (rounded to the
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...
Lets say you wanted to predict success in a college course - that is, you wanted...
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influence on good performance in class.
What are some potential INDEPENDENT variables that you might
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DEPENDENT variable of course performance?
David is entering high school and is determined to save money for college.
Determining future value
David is entering high school and is determined to save money for college. David feels
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able to invest at 6%, how much will he have when he starts college?
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