1. Given the data below, compute the following: a. Correlation coefficient i. r= ii. Is the relationship (select one) . Strongly correlated . Moderately correlated • Weakly correlated ● No correlation iii. In what direction is the correlation, interpret in the context of the data. b. Calculate the Slope C. Calculate the Intercept

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.6: Regression And Median-fit Lines
Problem 6PPS
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Question
1.
Given the data below, compute the following:
a.
Correlation coefficient
i. r=
ii. Is the relationship (select one)
.
Strongly correlated
Moderately correlated
• Weakly correlated
• No correlation
iii. In what direction is the correlation, interpret in the context of the data.
Calculate the Slope
C.
Calculate the Intercept
d. Use parts b. and c. to write down the regression equation.
Hours x
Test
Scores
n
Hours
Score
Hours^2
Score ^2
Studying
0
40
2
51
4
64
5
69
73
5
75
6
93
7
90
9
7
95
SUMS
e.
Use the regression equation to predict the test scores (y's) for the given hours of stu
i. X=3 hours
ii. X=6.5 hours
b.
1
2
3
4
5
6
7
8
5
Transcribed Image Text:1. Given the data below, compute the following: a. Correlation coefficient i. r= ii. Is the relationship (select one) . Strongly correlated Moderately correlated • Weakly correlated • No correlation iii. In what direction is the correlation, interpret in the context of the data. Calculate the Slope C. Calculate the Intercept d. Use parts b. and c. to write down the regression equation. Hours x Test Scores n Hours Score Hours^2 Score ^2 Studying 0 40 2 51 4 64 5 69 73 5 75 6 93 7 90 9 7 95 SUMS e. Use the regression equation to predict the test scores (y's) for the given hours of stu i. X=3 hours ii. X=6.5 hours b. 1 2 3 4 5 6 7 8 5
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