3. Research has shown that people are more ikelyto show dishonest and self-interested behaviorsin darkness than in a well-lit environment(Zhong, Bohns, & Gino, 2010). In one experiment,participants were given a set of 20 puzzles andWere paid $0.50 for each one solved in a 5-minuieperiod. However, the participants reported theirown performance and there was no obvious methodfor checking their honesty. Thus, the task providieda clear opportunity to cheat and receive undeservedmoney. One group of participants was tested ina room with dimmed lighting and a second groapWas tested in a well-lit room. The reported numberof solved puzzles was recorded for each individual.The following data represent results similar tethose obtained in the study.1013101214510 a. is there a significant difference in reportedperformance between the two conditions? Use atwo-tailed test with a = .01.b. Compute Cohen's d to estimate the size of thetreatment effect.

First we need to calculate mean and standard deviation for each of the samples. For Well Lit Room…

Answered: a. Is there a significant difference in…

a. Is there a significant difference in reported performance between the two conditions? Use a two-tailed test with a = .01. ib. Compute Cohen's d to estimate the size of the treatment effect.

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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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

3. Research has shown that people are more ikely
to show dishonest and self-interested behaviors
in darkness than in a well-lit environment
(Zhong, Bohns, & Gino, 2010). In one experiment,
participants were given a set of 20 puzzles and
Were paid $0.50 for each one solved in a 5-minuie
period. However, the participants reported their
own performance and there was no obvious method
for checking their honesty. Thus, the task providied
a clear opportunity to cheat and receive undeserved
money. One group of participants was tested in
a room with dimmed lighting and a second groap
Was tested in a well-lit room. The reported number
of solved puzzles was recorded for each individual.
The following data represent results similar te
those obtained in the study.
10
13
10
12
14
5
10

a. is there a significant difference in reported
performance between the two conditions? Use a
two-tailed test with a = .01.
b. Compute Cohen's d to estimate the size of the
treatment effect.

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