Two Work-Study students were hired to check and test the reproducibility of some new
Student A prepared three samples of
the same resolved amine by repeating a resolution experiment three times. Student B
performed three measurements of the specific rotations for all three samples supplied by
Student A. The measurements are:

Sample from Student A --------- [a] Measurements by Student B
1 ------------------------------ +9.46°, +9.49°, +9.48°
2 ------------------------------ +9.54°, +9.56°, +9.50°
3 ------------------------------- +9.65°, +9.66°, +9.69°

Provide statistically correct estimates of the specific rotation and its uncertainty.