Answered: Write out the regression equation.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.4: Collecting Data

Problem 2E

See similar textbooks

Related questions

Concept explainers

Question

A business statistics professor would like to develop a regression model to predict the exam scores for students based on their current GPAs, the number of hours they studied for the exam, and the number of times they were absent during the semester. The data for these variables are attached.

a) Run the multiple regression in Excel. Hint: set x₁ = GPA, x₂ = Hours, X₃ = Absences.

b) Find the R² and explain its meaning.

c) Explain the outcome of the F test. What does it mean?

d) Explain the outcomes of the t-tests for the slope coefficients.

e) Write out the regression equation.

f) Explain the meanings of the slope coefficients.

I did a and b. Please help me with the rest.

Score
GPA
Hours
Absences
68
2.53
3.00
69
2.25
4.00
3
70
2.60
2.50
1
71
3.10
0.50
74
3.08
6.00
4
77
2.75
3.50
6
77
3.35
1.50
78
2.98
3.00
3
78
2.99
2.00
3
79
2.84
2.50
2
79
2.80
4.50
82
3.44
7.00
1
83
3.25
3.00
1
84
3.15
3.00
4
84
3.18
5.50
84
2.95
2.00
84
2.71
4.00
1
85
3.20
4.50
85
3.75
2.00
85
3.57
3.50
2
86
2.92
6.00
1
86
3.04
6.50
1
86
3.16
5.00
87
3.89
7.50
4
87
3.54
4.00
89
3.33
6.50
1
89
3.66
5.00
90
2.87
3.50
90
3.40
6.00
1
91
3.22
4.50
91
3.79
7.00
92
3.93
6.00
2
92
4.00
5.00
92
3.60
6.50
1
93
2.98
4.00
2
94
3.26
6.50
98
2.88
3.50
99
3.73
5.00
1
100
3.48
6.50
1
100
3.00
7.00

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Correlation, Regression, and Association$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Recommended textbooks for you

Holt Mcdougal Larson Pre-algebra: Student Edition…

Algebra

ISBN:

9780547587776

Author:

HOLT MCDOUGAL

Publisher:

HOLT MCDOUGAL