Question

1. Researchers measured the diameters of 22 trees in a central Amazon rain forest. They also used Carbon-dating to determine the age of each tree. After checking all relevant assumptions, they calculated a Pearson correlation coefficient ofr 0.67 for the age of the trees compared to their diameter Calculate the 95% confidence interval for the correlation coefficient for this population of trees. (3pt) a. Given your answer to part (a), is there a significant linear relationship between age and diameter for these trees? Why/why not? (2pt) b.

Answer 1

to) stopr NULL Hypothesis (Ha) : evcis quo significant Gnraǐyclahon day betues age and diamt Signi h Gw Unar. YeL.honsん etuun o 1 .& Step3. S t m- 1-0-67ュ

and ao d-F :30 うろこ a-086 Th(YC rw ees age To ce s The a5% (entclunce av tend tor (017e.ti en (octticient外 0.

0.324,06 0.3, 1.o