In a study of ground motion caused by earthquakes, peak speed (in m / s) and peak acceleration (in m / s2) were recorded for five earthquakes. The results are presented in the following table.

Speed —— 1.5 | 1.6 | 0.9 | 1.3 | 2.4

Acceleration 7.8 | 8.1 | 7.4 | 7.2 | 8.4

A. calculate the correlation coefficient between top speed and peak acceleration.

B. Find a 90% confidence interval for p, the population correlation between top speed and peak acceleration.

C. Can you conclude that p> .8?

D. Can you conclude that p> 0?