Chapter 12 Solutions

55 b x1 14 n1 x1 6 x2 8 n2 x2 12 all are at least

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: nce a week. 12.82 a. ̂ = x1/n1 = 18/40 = 0.45; ̂ = x2/n2 = 30/40 = 0.75; ̂ = (x1 + x2)/(n1 + n2) = 40/80 = 0.55 b. x1 = 14, n1 – x1 = 6, x2 = 8, n2 – x2 = 12. All are at least 5, so z-procedure are appropriate. c. √ ( )[( ⁄ )(⁄ )] α = 0.10, cri...
View Full Document

This document was uploaded on 02/06/2014.

Ask a homework question - tutors are online