Chapter 9.1, Problem 21P

(a)

To determine

Identify whether the value of $\left|r\right|$ is large enough to conclude that weight and age of Shetland ponies are correlated at $\alpha =0.05$.

(b)

To determine

Identify whether the value of $\left|r\right|$ is large enough to conclude that lowest barometric pressure and wind speed of a cyclone are correlated at $\alpha =0.01$.