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Table 11 Correlation between the distributions showed in Table 9 and 10

From: Investigating probabilistic sampling approaches for large-scale surveys in software engineering

Stratum

Correlation

95 % (inferior)

95 % (superior)

E1

0.8022

0.3487

0.9513

E2

0.9957

0.9814

0.999

E3

0.7857

0.309

0.9469

E4

0.9595

0.8333

0.9906

E5

0.7611

0.2524

0.9402

E6

0.9786

0.9092

0.9951

E7

0.943

0.7714

0.9868

E8

0.9843

0.9329

0.9964