Calculate and evaluate Cohen’s d and r2. What decision can you make and what does it indicate? What type of error could you be making and what would that mean? In a study of jury behavior, participants in two separate groups were given details about a trial where the defendant was clearly guilty. Group 1 received standard information, while Group 2 was additionally informed that the judge had withheld certain evidence from the jury. Following this, participants were asked to recommend a jail sentence. The following data illustrates the length of terms suggested by each participant. Group 1: - Mean (M) = 3- Sum of Squares (SS) = 16- Sample Size (n) = 8Group 2: - Mean (M) = 6- Sum of Squares (SS) = 24- Sample Size (n) = 10The question posed is whether there is a significant difference between the two groups in their responses.

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2. In a study of jury behavior, two samples of participants were provided details about a trial in which the defendant was obviously guilty. Although group 2 received the same details as group 1, the second group was also told that some evidence had been withheld from the jury by the judge. Later, the participants were asked to recommend a jail sentence. The length of term suggested by each participant is presented here. Is there a significant difference between the two groups in their responses? For Group 1: M= 3, SS = 16, n= 8 For Group 2: M=6, SS=24, n= 10

2. In a study of jury behavior, two samples of participants were provided details about a trial in which the defendant was obviously guilty. Although group 2 received the same details as group 1, the second group was also told that some evidence had been withheld from the jury by the judge. Later, the participants were asked to recommend a jail sentence. The length of term suggested by each participant is presented here. Is there a significant difference between the two groups in their responses? For Group 1: M= 3, SS = 16, n= 8 For Group 2: M=6, SS=24, n= 10

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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