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"Dr. Broadus found a significant effect of alcohol consuption on dance partner attractiveness ratings using a dependent sample t-test. If he observed a mean difference of 2.96 with a sample variance value of 21.4 after alcohol consuption, what would be the effecti size in terms of Cohen's d?" d = 0.64 d = 0.14 d = -0.64 d = 0.44

"Dr. Broadus found a significant effect of alcohol consuption on dance partner attractiveness ratings using a dependent sample t-test. If he observed a mean difference of 2.96 with a sample variance value of 21.4 after alcohol consuption, what would be the effecti size in terms of Cohen's d?" d = 0.64 d = 0.14 d = -0.64 d = 0.44

MATLAB: An Introduction with Applications
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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**Question 24** "A single sample t-test with a df = 27 determined that the mean of 45.75 was significantly higher after treatment. Assuming the standard error = 0.83, construct a 99% confidence interval to estimate the population mean difference." - ○ 99% CI = 43.45 to 48.05 - ○ 99% CI = 44.05 to 47.45 - ○ 99% CI = 44.34 to 47.16 - ○ 99% CI = 42.91 to 48.59 **Question 25** "Dr. Broadus found a significant effect of alcohol consumption on dance partner attractiveness ratings using a dependent sample t-test. If he observed a mean difference of 2.96 with a sample variance value of 21.4 after alcohol consumption, what would be the effect size in terms of Cohen's d?" - ○ d = 0.64 - ○ d = 0.14 - ○ d = 0.64 - ○ d = 0.44 **Question 26** "An independent sample t-test with a df = 7 resulted in an observed t = 2.99. What would be the effect size value in terms of variance accounted for? (Be sure to round the answer to the second decimal place)" - (No options provided) _Click Save and Submit to save and submit. Click Save All Answers to save all answers._
Transcribed Image Text:**Question 24** "A single sample t-test with a df = 27 determined that the mean of 45.75 was significantly higher after treatment. Assuming the standard error = 0.83, construct a 99% confidence interval to estimate the population mean difference." - ○ 99% CI = 43.45 to 48.05 - ○ 99% CI = 44.05 to 47.45 - ○ 99% CI = 44.34 to 47.16 - ○ 99% CI = 42.91 to 48.59 **Question 25** "Dr. Broadus found a significant effect of alcohol consumption on dance partner attractiveness ratings using a dependent sample t-test. If he observed a mean difference of 2.96 with a sample variance value of 21.4 after alcohol consumption, what would be the effect size in terms of Cohen's d?" - ○ d = 0.64 - ○ d = 0.14 - ○ d = 0.64 - ○ d = 0.44 **Question 26** "An independent sample t-test with a df = 7 resulted in an observed t = 2.99. What would be the effect size value in terms of variance accounted for? (Be sure to round the answer to the second decimal place)" - (No options provided) _Click Save and Submit to save and submit. Click Save All Answers to save all answers._
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