Both samples are large (n130,n230), then 100(1)% CI for 12 is (X1X2)z/2n112+n222. When the
values of 1 and 2 are unknown, they can be replaced with the sample standard deviations s1 and
s2..
Python Notes for mca i year students osmania university.docx
Both samples are large n130n230 then 1001 CI for 12 i.pdf
1. Both samples are large (n130,n230), then 100(1)% CI for 12 is (X1X2)z/2n112+n222. When the
values of 1 and 2 are unknown, they can be replaced with the sample standard deviations s1 and
s2.