Your Answer Correct Answer V Correct. Calculate the least squares estimate of the intercept. (Round your answer to 3 decimal places.) 48.014

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Part 3
Part 2
Your Answer
Correct Answer
Correct.
Calculate the least squares estimate of the intercept. (Round your answer to 3 decimal places.)
48.014
eTextbook and Media
Attempts: 1 of 2 used
Using multiple attempts will impact your score.
20% score reduction after attempt 1
Part 3
Use the equation of the fitted line to predict what permeability would be observed when the compressive strength isx= 4.3.
(Round your answer to 2 decimal places.)
Transcribed Image Text:Part 2 Your Answer Correct Answer Correct. Calculate the least squares estimate of the intercept. (Round your answer to 3 decimal places.) 48.014 eTextbook and Media Attempts: 1 of 2 used Using multiple attempts will impact your score. 20% score reduction after attempt 1 Part 3 Use the equation of the fitted line to predict what permeability would be observed when the compressive strength isx= 4.3. (Round your answer to 2 decimal places.)
An article in Concrete Research ("Near Surface Characteristics of Concrete: Intrinsic Permeability." Vol. 41, 1989), presented data on
compressive strengthx and intrinsic permeability y of various concrete mixes and cures. Summary quantities are n = 14 Ey = 572.
EY = 23,530, E = 43, Ex = 157.42, and Exyi
simple linear regression model.
= 1697.80. Assume that the two variables are related according to the
Statistical Tables and Charts
Part 1
Your Answer
Correct Answer
Correct.
Calculate the least squares estimatė of the slope. (Round your answer to 3 decimal places.)
-2.330
eTextbook and Media
Attempts: 1 of 2 used
Using multiple attempts will impact your score.
20% score reduction after attempt 1
Part 2
Your Answer
Correct Answer
V Correct.
Calculate the least squares estimate of the intercept. (Round your answer to 3 decimal places.)
48.014
Transcribed Image Text:An article in Concrete Research ("Near Surface Characteristics of Concrete: Intrinsic Permeability." Vol. 41, 1989), presented data on compressive strengthx and intrinsic permeability y of various concrete mixes and cures. Summary quantities are n = 14 Ey = 572. EY = 23,530, E = 43, Ex = 157.42, and Exyi simple linear regression model. = 1697.80. Assume that the two variables are related according to the Statistical Tables and Charts Part 1 Your Answer Correct Answer Correct. Calculate the least squares estimatė of the slope. (Round your answer to 3 decimal places.) -2.330 eTextbook and Media Attempts: 1 of 2 used Using multiple attempts will impact your score. 20% score reduction after attempt 1 Part 2 Your Answer Correct Answer V Correct. Calculate the least squares estimate of the intercept. (Round your answer to 3 decimal places.) 48.014
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