Answered: Which statistical analysis did the…

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 30PPS

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Question

The researchers conducted a pretest to confirm that participants would repond differently to the emotional and rational groups. Participants in the pretest were asked to rate both groups (emotional, rational) on the scale ranging from 1 ( " cognitive, rational appeals would be more persuasive") to 5 ( " emotional, feeling-based appeals would be most persuasive "). A statistical analysis " indicated that participants believed that the group of scientists, mathematicians, and economic analysts would be more likely to be persuaded by cognitive appeals (M = 1.26, 95% CI = [ 1.16, 1.36 ]), whereas the group of artists, dancers, and musicians were thought more likely to be persuaded by emotional appeals ( M = 4.46, 95% CI = [ 4.31, 4.61]); t (49) = 15.24, p , .001, d = 2.16."

Which statistical analysis did the researchers use to determine whether the results were statistically significant?

a. Cohen's d

b. Single sample t test

c. Paired - sample t test

d. Independent - samples t test

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