Mean 1 = 17, SD 1=7.89 Mean 2= 89, SD 2= 6.69 R = -0.84 What is the proportion of variance shared between the two variables? (How much of the variance in one variable can be predicted by the variance in the other variable?)
Mean 1 = 17, SD 1=7.89 Mean 2= 89, SD 2= 6.69 R = -0.84 What is the proportion of variance shared between the two variables? (How much of the variance in one variable can be predicted by the variance in the other variable?)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
100%
Mean 1 = 17, SD 1=7.89
Mean 2= 89, SD 2= 6.69
R = -0.84
What is the proportion of variance shared between the two variables? (How much of the variance in one variable can be predicted by the variance in the other variable?)
Transcribed Image Text:(Round calculated results to the hundredth (2nd place to the right of the decimal) when result extends
beyond that unless otherwise noted).
It is generally believed that there is a relationship between a college's acceptance rate and its
graduation rate. I wanted to know how strong this relationship is within the top universities in the
country, so I collected the graduation rate and acceptance rate data of a randomly selected sample of
universities from all the top U.S. universities (with an acceptance rate at or below 30%). The data set is
in Tab Q2 of the Excel data file.
Ola Create a scatter plot between the two variables using Excel. Paste the plot here and format it into
Transcribed Image Text:1
2
3
4
5
6
7
8
A
B
C
College ID Accept rate (%) Grad rate (%)
1
5
96
5
97
6
95
8
98
10
96
10
94
15
85
15
93
15
84
16
92
18
89
18
96
20
90
20
86
24
85
25
76
25
86
80
78
84
9
10
11
12
13
14
15
16
17
18
19
20
7222
21
22
23
34
24
568LOSA EN
2
3
4
7
9
10
11
12
13
14
15
16
17
18
19
20
28
28
29
Expert Solution
Step 1
Obtain the value of the correlation.
The value of the correlation is obtained below as follows:
From the given information, the value of correlation coefficeint (r)=-0.84.
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