What are the upper and lower 2.5th percentiles for a chi-square distribution with 2 df? What notation is used to denote these percentiles? 

Pulmonary Disease

The data in Table 6.10 concern the mean triceps skin-fold thickness in a group of normal men and a group of men with chronic airflow limitation [5].

Table 6.10: Triceps skin-fold thickness in normal men and men with chronic airflow limitation

 

Group Mean sd Normal Chronic airflow limitation 40 0.5 0.4 1.35 0.92 32