independent random samples from normal populations produced the results shown in the table to the right. complete parts a through d below.
Sampel1 Sample2
2.8 3.3
2.3 2.9
2.3 2.8
1.9 3.1
1.2
a. Calculate the pooled estimate of σ^2. s^2_p = ____ (Round to four decimal places as needed.)