Inferences on Two Populations

Measurements g baker department of statistics g

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ements are average measurements more than 0.10 greater than operator 1’s more measurements. measurements. G. Baker, Department of Statistics G. University of South Carolina; Slide 27 Difference Between Independent Means, Difference µ1 - µ2 Equal variances: y1 − y2 ± tα / 2 s p 11 + n1 n2 ( y1 − y2 ) − ( µ1 − µ 2 ) 0 t= 11 sp + n1 n2 2 2 (n1 − 1) s1 + (n2 − 1) s2 sp = n1 + n2 − 2 Unequal variances: y1 − y2 ± tα / 2 2 1 2 2 s s + n1 n2 t df = ( y1 − y2 ) − (µ1 − µ 2 )0 2 s12 s2 + n1 n2 G. Baker, Department of Statistics G. University of South Carolina; Slide 28 Difference between dependent samples, µD Difference y D ± tα / 2 sD nD y D − D0 t nD −1 = s D / nD G. Baker, Department of Statistics G. University of South Carolina; Slide 29...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online