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Indicate whether they are true or false, and briefly explain WHY? 1a. If an observation is more than three standard deviations from the mean, it is an outlier and must therefore be eliminated from the sample. b. If the only results that get reported are those that pass a P < .05 filter, there will be a tendency for them to overestimate the size of the true effect. c.. When a researcher finds that several models can plausibly estimate an effect size of interest, best practice is to select the model thought to be superior overall and report only its results

Indicate whether they are true or false, and briefly explain WHY? 1a. If an observation is more than three standard deviations from the mean, it is an outlier and must therefore be eliminated from the sample. b. If the only results that get reported are those that pass a P < .05 filter, there will be a tendency for them to overestimate the size of the true effect. c.. When a researcher finds that several models can plausibly estimate an effect size of interest, best practice is to select the model thought to be superior overall and report only its results

MATLAB: An Introduction with Applications
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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Indicate whether they are true or false, and briefly explain WHY?

1a. If an observation is more than three standard deviations from the mean, it is an outlier and must therefore be eliminated from the sample.

b. If the only results that get reported are those that pass a P < .05 filter, there will be a tendency for them to overestimate the size of the true effect.

c.. When a researcher finds that several models can plausibly estimate an effect size of interest, best practice is to select the model thought to be superior overall and report only its results.

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