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Past Exam for STA 6166 - Stat Meth Res I at Florida International (FIU)

Exam Information

Material Type:Exam 3
Professor:Staff
Class:STA 6166 - Stat Meth Res I
Subject:Statistics
University:Florida International University
Term:--
Keywords:
  • Test Statistic
  • Sample Size
  • Margin of Error
  • Confidence Interval
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FORMULAS TEST 3 n xx i?= ( ) 1 2 ? ?= ? n xxs i Sample Size For 2* ??????= mzn s For p *)1(** 2 ppmzn ?? ? ?? ? ?= where m is margin of error Parameter Test Statistic Confidence Interval n xz /s m?= )/(* nzx s ns xt / m?= )/(* nstx df = n-1 1 - 2 21 2121 11 )( nns xxt p + ???= mm 21 21 11* nnstxx p +? where 2 )1()1( 21 2 22 2 112 ?+ ?+?= nn snsns p df = n1 + n2 - 2 p n pp ppz oo o )1( ? ?= ? n Xp =? n ppzp )1(* ?? ? ? p1 - p2 )11)(1( 21 21 nnpp ppz +? ?= ?? ?? 2 22 1 11 21 )1()1(* n pp n ppzpp ???? ?? ?+?? where 21 21 nn XXp + +=? ...
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