The assumption is assumed to be valid with level of

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: es, but we compare our σ value with the critical σ bounds. The assumption is assumed to be valid with level of significance if our σ value is in the confidence interval and to be invalid otherwise. Then, a 95% confidence interval for σ can be calculated as follows: Χ 1s , / , 0,484 σ 4 0,815 σ 4 0,815 11,143 11,143 4 0,815 0,484 σ 1 Χ ,/ 1 , 1 0,05 0,95 0,293 13 April 2011 σ 6,736 0,95. 1 lies in the 95% confidence interval for Then, we again do not reject the assumption since which is 0,293, 6,736 . , : 1 and : Question 2) Let 2. Company 1 Company 2 5 7...
View Full Document

This document was uploaded on 02/22/2014.

Ask a homework question - tutors are online