A sample correlation between amount of caffeine consumed and nervous behavior wa

ID: 3388702 • Letter: A

Question

A sample correlation between amount of caffeine consumed and nervous behavior was found to be r = .30.

What conclusion can be drawn from this information and your knowledge of statistics?

Question 6 options:

9% of the variability in nervous behavior can be accounted for by variability in amount of caffeine consumed.

Consuming caffeine causes nervousness.

The correlation between nervous behavior and caffeine consumption is not significant.

30% of the variability in nervous behavior can be accounted for by variability in amount of caffeine consumed.

9% of the variability in nervous behavior can be accounted for by variability in amount of caffeine consumed.

Consuming caffeine causes nervousness.

The correlation between nervous behavior and caffeine consumption is not significant.

30% of the variability in nervous behavior can be accounted for by variability in amount of caffeine consumed.

ANS:30% of the variability in nervous behavior can be accounted for by variability in amount of caffeine consumed.

Reason: r = 0.30, postively corrleated, we do see variability in positive direction

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.