formula sheet

formula sheet - ISDS 2000 FORMULAE SHEET TEST 3 CONFIDENCE...

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

View Full Document Right Arrow Icon
ISDS 2000 – FORMULAE SHEET – TEST 3 CONFIDENCE INTERVALS: Level of Confidence = (1- α ) CI (1- α ) = X ± Z n σ CI (1- α ) = X ± t n s Where degrees of freedom = n –1 And α/2 is the tail area
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.
Ask a homework question - tutors are online