Recall that two researchers (Veronica and Bella, in Exercises 9.1.4 and 9.1.5) are working separately to investigate whether reaction time (seconds) is associated with the presence and type of music that is playing in the background. Suppose that the summary statistics for the data from each of their studies turned out as below: From Veronica’s study.

How will their Mean Group Diff statistics and p-values compare? 

A. Veronica will get a larger Mean Group Diff statistic and smaller p-value. 

B. Bella will get a larger Mean Group Diff statistic and smaller p-value. 

C. Veronica and Bella will get the same Mean Group Diff statistic, but Veronica will get a smaller p-value. 

D. Veronica and will Bella get the same Mean Group Diff statistic, but Bella will get a smaller p-value.

Data from Exercises 9.1.4

Two researchers (Veronica and Bella) are working separately to investigate whether reaction time (seconds) is associated with the presence and type of music that is playing in the background. Summary statistics for the data from each of their studies are presented below: 

From Veronica’s study 

From Bella’s study 

Transcribed Image Text:

Treatment No music Classical Rap From Bella's study Sample size Sample mean 15 0.35 seconds 15 0.36 seconds 15 0.38 seconds Treatment Sample size Sample mean No music 0.35 seconds Classical 0.36 seconds Rap 0.38 seconds 15 15 15 Sample SD 0.19 seconds 0.17 seconds 0.12 seconds Sample SD 0.09 seconds 0.07 seconds 0.12 seconds