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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.

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.

College Algebra
College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section8.6: Counting Principles
Problem 74E: Lottery Powerball is a lottery game that is operated by the Multi-State Lottery Association and is...
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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
Transcribed Image Text: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.
Transcribed Image Text: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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