True or false 1) Chi-square test statistic is always positive. 2) When doing linear regression, the sign of the slope is always same as the sign of the correlation coefficient. 3) A slope that is not statistically significantly different than zero indicates no linear relation between two variables, X and Y. 4) Confidence interval of the estimated slope is always wider than prediction interval.

True or false 1) Chi-square test statistic is always positive. 2) When doing linear regression, the sign of the slope is always same as the sign of the correlation coefficient. 3) A slope that is not statistically significantly different than zero indicates no linear relation between two variables, X and Y. 4) Confidence interval of the estimated slope is always wider than prediction interval.

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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