Question

A plant physiologist grew 13 individually potted soybean seedlings in a greenhouse. The table gives measurements of the total leaf area and total plant dry weight for each plant after 16 days of growth. Calculate the correlation coefficient for these data. Test its significance via a t-test. Interpret the result.

Plant #	1	2	3	4	5	6	7	8	9	10	11	12	13
Leaf area (cm2)	411	550	471	393	427	431	492	371	470	419	407	489	439
Dry weight (g)	2.00	2.46	2.11	1.89	2.05	2.30	2.46	2.06	2.25	2.07	2.17	2.32	2.12

Answer 1