Please use the following information to answer questions 7a-7c: Research has shown that people are more likely to show dishonest and self-interested behaviors in darkness than in 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-minute period. However, the participants reported their own performance and there was no obvious method for checking their honesty. Thus, the task provided a clear opportunity to cheat and receive undeserved money. One group of participants was tested in a well-lit room and a second group was tested in a room with dimmed lighting . The reported number of solved puzzles was recorded for each individual. The following data represent results similar to those obtained in the study. Well-Lit Room (Group1) Dimly-Lit Room (Group2) 7 9 8 11 10 13 6 10 8 11 5 9 7 15 12 14 5 10 Is there a significant difference in reported performance between the two conditions? Use a two-tailed test with α = .01. 7a. Which of the following correctly represents the null and alternative hypothesis (MUST SHOW WORK FOR THIS PROBLEM)? Group of answer choices: a. Ho: µ1 - µ2 = 0, H1: µ1 - µ2 ≠ 0 b. Ho: µ1 - µ2 ≠ 0, H1: µ1 - µ2 = 0 c. Ho: µ1 - µ2 ≥ 0, Ho: µ1 - µ2 < 0 d. Ho: µ1 - µ2 ≤ 0, Ho: µ1 - µ2 > 0 7b. Which of the following represents the proper critical region (MUST SHOW WORK FOR THIS PROBLEM)? Group of answer choices: a. t = 2.921 b. t = ±2.583 c. t = 2.583 d. t = ±2.921 7c. Compute the test statistic (t-observed) (MUST SHOW WORK FOR THIS PROBLEM). Note: Must also show work for pooled variance and estimated standard error.

Please use the following information to answer questions 7a-7c: Research has shown that people are more likely to show dishonest and self-interested behaviors in darkness than in 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-minute period. However, the participants reported their own performance and there was no obvious method for checking their honesty. Thus, the task provided a clear opportunity to cheat and receive undeserved money. One group of participants was tested in a well-lit room and a second group was tested in a room with dimmed lighting . The reported number of solved puzzles was recorded for each individual. The following data represent results similar to those obtained in the study. Well-Lit Room (Group1) Dimly-Lit Room (Group2) 7 9 8 11 10 13 6 10 8 11 5 9 7 15 12 14 5 10 Is there a significant difference in reported performance between the two conditions? Use a two-tailed test with α = .01. 7a. Which of the following correctly represents the null and alternative hypothesis (MUST SHOW WORK FOR THIS PROBLEM)? Group of answer choices: a. Ho: µ1 - µ2 = 0, H1: µ1 - µ2 ≠ 0 b. Ho: µ1 - µ2 ≠ 0, H1: µ1 - µ2 = 0 c. Ho: µ1 - µ2 ≥ 0, Ho: µ1 - µ2 < 0 d. Ho: µ1 - µ2 ≤ 0, Ho: µ1 - µ2 > 0 7b. Which of the following represents the proper critical region (MUST SHOW WORK FOR THIS PROBLEM)? Group of answer choices: a. t = 2.921 b. t = ±2.583 c. t = 2.583 d. t = ±2.921 7c. Compute the test statistic (t-observed) (MUST SHOW WORK FOR THIS PROBLEM). Note: Must also show work for pooled variance and estimated standard error.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 4AGP

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Related questions

Question

Please use the following information to answer questions 7a-7c:

Research has shown that people are more likely to show dishonest and self-interested behaviors in darkness than in 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-minute period. However, the participants reported their own performance and there was no obvious method for checking their honesty. Thus, the task provided a clear opportunity to cheat and receive undeserved money. One group of participants was tested in a well-lit room and a second group was tested in a room with dimmed lighting . The reported number of solved puzzles was recorded for each individual. The following data represent results similar to those obtained in the study.

Well-Lit Room (Group1) Dimly-Lit Room (Group2)

7 9

8 11

10 13

6 10

8 11

5 9

7 15

12 14

5 10

Is there a significant difference in reported performance between the two conditions? Use a two-tailed test with α = .01.

7a. Which of the following correctly represents the null and alternative hypothesis (MUST SHOW WORK FOR THIS PROBLEM)?