sta 2023 c dwackerly lecture 16 1

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: – USE IT !!!  for C.I. ¥ '(  standard error ¢  !   & & '( & ' ¦¨ " &    ) # © ©  units with &  to be correct to within “ ” $ 211 £ ) Want : Estimate for  ¦  £  ¢ ¦¨ ¥ $  Finding the sample size to estimate .  " ¡  ¦   ¥ £   STA 2023 c D.Wackerly - Lecture 16 ¢ 1 ) )   ¥ ¢ ¢ ¤ & ¢ ) ( #  £  # ) ) ) )  ¥¤  #  ) ¢ ¢ ¢ ¢ ¢ ( ¤ ¥ ¦ # ) # ¥¤ ¥¤ ) ¥ ¢ ¤ ) 212 '( '( ¦¨ ¥ ¢ bigger .25 .24 .21 .16 .09 .4 or .6 .3 or .7 .2 or .8 .1 or .9 bigger smaller .5 $ © &  ¢ $ & ¦ ¡ ¥ & Higher confidence:   Max value of bigger bigger bigger is at bigger . smaller for , I get a sample size Use . How about if I had no information about Recall that : about 214 FOR EVERY VALUE OF . Ex.: Insecticide example – Had some preliminary info $ © " © ( ¡ ¡ that will work FOR ANY value of . (P. 309) ¦  If I evaluate ¢ WHAT? & – THEN ¢ ¡ ¦©  ©  ¨ That is ¦ ¢ ¥ ¥ STA 2023 c D.Wackerly - Lecture 16 #  ¢ # )    How about if we have no idea of the value of ¦¨ #$ )   ¦  ) $ 213 &  & ¦  ¢ ?  ¦ ¡  # ¨ ¢  £  ¥ $ )  ¦  ¢ #  ) # ¥ ¨ ¦¨ ¥£ ¢ ¢ ¥ ¢  1 ) $  ¢ ) # ¢$ ) ¦ ¢ ) ¦ # ¥¤  ) ¤  STA 2023 c D.Wackerly - Lecture...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online