Old Faithful Refer to Data Set 13 in Appendix B.

a. Use the paired data for durations (x) and intervals (y) after eruptions of the geyser.

What is the best predicted time before the next eruption if the previous eruption lasted for 210 sec?

b. Use the paired data for heights of eruptions (x) and intervals (y) after eruptions of the Old Faithful geyser. What is the best predicted time before the next eruption if the previous eruption had a height of 275 ft?

c. Which predicted time is better: the result from part

(a) or the result from part (b)?

Why?