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
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question

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.

Expert Solution
steps

Step by step

Solved in 3 steps

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman