pressive strength x and intrinsic permeability y of various concrete mixes and cures. Summary quantities are n = 14, v = 572, Σ ν = 23,530, Σ.x. = 43, Σx = 157.42, and Exy = 1697.80. Assume that the two variables are related ording to the simple linear regression model. Correct. Calculate the least squares estimate of the slope. (Round your answer to 3 decimal places.) -2.330 Correct. lculate the least squares estimate of the intercept. (Round your answer to 3 decimal places.) 48.014 * Incorrect. Statistical Tables and Charts Use the equation of the fitted line to predict what permeability would be observed when the compressive strength is x = 4.3. Round your answer to 2 decimal places.) i -0.36

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
100%

11. 2.3 help correct the last question

An article in Concrete Research ("Near Surface Characteristics of Concrete: Intrinsic Permeability," Vol. 41, 1989), presented data on
compressive strength x and intrinsic permeability y of various concrete mixes and cures. Summary quantities are n = 14,
Σy = 572, Σv = 23,530, Σ.x, = 43, Σ. x = 157.42, and Ex,y, = 1697.80. Assume that the two variables are related
according to the simple linear regression model.
Correct.
Calculate the least squares estimate of the slope. (Round your answer to 3 decimal places.)
-2.330
Correct.
Calculate the least squares estimate of the intercept. (Round your answer to 3 decimal places.)
48.014
* Incorrect.
Statistical Tables and Charts
Use the equation of the fitted line to predict what permeability would be observed when the compressive strength is x = 4.3.
(Round your answer to 2 decimal places.)
-0.36
Transcribed Image Text:An article in Concrete Research ("Near Surface Characteristics of Concrete: Intrinsic Permeability," Vol. 41, 1989), presented data on compressive strength x and intrinsic permeability y of various concrete mixes and cures. Summary quantities are n = 14, Σy = 572, Σv = 23,530, Σ.x, = 43, Σ. x = 157.42, and Ex,y, = 1697.80. Assume that the two variables are related according to the simple linear regression model. Correct. Calculate the least squares estimate of the slope. (Round your answer to 3 decimal places.) -2.330 Correct. Calculate the least squares estimate of the intercept. (Round your answer to 3 decimal places.) 48.014 * Incorrect. Statistical Tables and Charts Use the equation of the fitted line to predict what permeability would be observed when the compressive strength is x = 4.3. (Round your answer to 2 decimal places.) -0.36
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
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 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…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
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
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman