he following statistical software output MPa) of concrete beams on modulus of elasticity (measured in GPa). ANOVA df SS MS F P-value 58.996 78.766 0.000 Regression Residual Total 58.996 25 18.736 0.749 26 77.732 Coefficients Standard Coefficients Error t Stat P-value Intercept Mod 32479 0.6083 5.339 0.000 Elasticity "0.10712 0.01207 8.875 0.000 (a) Create a 99% two-sided confidence interval for the slope. (Round your answers to 3 decimal places, if needed.)
he following statistical software output MPa) of concrete beams on modulus of elasticity (measured in GPa). ANOVA df SS MS F P-value 58.996 78.766 0.000 Regression Residual Total 58.996 25 18.736 0.749 26 77.732 Coefficients Standard Coefficients Error t Stat P-value Intercept Mod 32479 0.6083 5.339 0.000 Elasticity "0.10712 0.01207 8.875 0.000 (a) Create a 99% two-sided confidence interval for the slope. (Round your answers to 3 decimal places, if needed.)
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
5
Transcribed Image Text:The following statistical software output is for a regression of flexural strength (measured in
MPa) of concrete beams on modulus of elasticity (measured in GPa).
ANOVA
df
SS
MS
P-value
58.996| 78.766
0.000
Regression
Residual
1.
58.996
25
18.736
0.749
Total
26
77.732
Coefficients
Standard
Coefficients
Error
t Stat P-value
Intercept
3.2479
0.6083
5.339
0.000
Mod
Elasticity
"0.10712
0.01207
8.875
0.000
(a) Create a 99% two-sided confidence interval for the slope. (Round your answers to 3
decimal places, if needed.)
(b) Based on this two-sided confidence interval, is there a relationship between the two
variables?
O Yes, since the interval is completely above 0.
O No, since the interval is completely above 0.
O No, since the interval contains 0.
O Yes, since the interval contains 0.
(c) Suppose it had previously been believed that when modulus of elasticity increased by 1
GPa, the associated true average change in flexural strength would be higher than 0.1 MPa.
Does the sample data support this belief? Use a 99% one-sided confidence interval to
determine the answer. (Round your answers to 3 decimal places, if needed.)
(d) Based on this one-sided confidence interval, does the sample data support this belief?
O No, since the interval is completely above 0.1.
O Yes, since the interval is completely above 0.1.
O Yes, since the interval contains 0.1.
O No, since the interval contains 0.1.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman