Curing times in days (x) and compressive strengths in MPa (V) were recorded for severalconcrete specimens. The means and standard deviations of the x and y values were* = 5, s, = 2, 5 = 1350, s, = 100. The correlation between curing time and compressivestrength was computed to be r = 0.7. Find the equation of the least-squares line to predictcompressive strength from curing time.

Introduction: A simple linear regression equation is of the form:

Answered: Curing times in days (x) and…

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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The line of best fit through a set of data is N y = - 23.469 - 2.121a According to this equation, what is the predicted value of the dependent variable when the independent variable has value 20? y = Round to 1 decimal place.
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