**Question:**If a researcher expects that a treatment will decrease scores, then the critical region for the directional test will be in the left-hand tail of the distribution of sample means.- ○ True- ○ False---This question tests your understanding of hypothesis testing and statistical significance. In a directional test, if it is anticipated that a treatment will reduce scores, the critical region would indeed be located in the left-hand tail of the distribution. This is because the alternative hypothesis suggests the mean is less than the null hypothesis, thereby making the left tail the area of interest for potential rejection of the null.

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Answered: If a researcher expects that a…

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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If a researcher expects that a treatment will decrease scores, then the critical region for the directional test will be in the left- hand tail of the distribution of sample means. True False