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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?" Od = 0.64 Od = 0.14 Od = -0.64 Od = 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?" Od = 0.64 Od = 0.14 Od = -0.64 Od = 0.44

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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QUESTION 23 "A fitness coach woud like to determine whether her aerobic fitness intervention leads to a significant increase or decrease in the one rep max (i.e., heaviest possible weight that can be lifted once) for deadlifts in her group of athletes (n = 13). She finds that the mean difference = 6.5 Ibs, with a sum of squared deviation (SS) = 87.9. Calculate the t-statistic the fitness coach would observe given this data. (Be sure to round your answer to the second decimal place)." 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." O 99% CI = 43.45 to 48.05 O 99% CI = 44,05 to 47.45 O 99% CI = 44.34 to 47.16 O 99% CI = 42.91 to 48.59 QUESTION 25 "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?" Od = 0.64 O d = 0.14 O d = -0,64 O d = 0.44
Transcribed Image Text:QUESTION 23 "A fitness coach woud like to determine whether her aerobic fitness intervention leads to a significant increase or decrease in the one rep max (i.e., heaviest possible weight that can be lifted once) for deadlifts in her group of athletes (n = 13). She finds that the mean difference = 6.5 Ibs, with a sum of squared deviation (SS) = 87.9. Calculate the t-statistic the fitness coach would observe given this data. (Be sure to round your answer to the second decimal place)." 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." O 99% CI = 43.45 to 48.05 O 99% CI = 44,05 to 47.45 O 99% CI = 44.34 to 47.16 O 99% CI = 42.91 to 48.59 QUESTION 25 "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?" Od = 0.64 O d = 0.14 O d = -0,64 O d = 0.44
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