ABSTRACT

Since 64 = <r~, equation (3.2.1) provides the exact 1 - 2a confidence interval on <r~. Approximate confidence intervals on the other variance components can be constructed using the results of Section 3.3.1. In particular, (3. 3 . 1) and (3. 3. 2) can be used to construct intervals on <r~ = (6 1 - 63)/(JK), <r~ = (62 - 63)/(/K), and <rk = (63 - 64)/K. To illustrate, the approximate 1 - 2a confidence interval on <r~ is

where

and

(6.2.2)

Confidence intervals on <r~ and <rk are similarly defined with the appropriate substitutions.