Recall that two researchers (Veronica and Bella, in Exercise 9.1.4) 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 

From Bella’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 will get a larger Mean Group Diff statistic and larger p-value. 

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

Data from Exercise 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 .

Transcribed Image Text:

Treatment No music Classical Rap Sample size Sample mean 15 0.35 seconds 15 15 0.36 seconds 0.48 seconds Sample SD 0.09 seconds 0.07 seconds 0.12 seconds