Spring 2011 Homework 10 Solutions

Spring 2011 Homework 10 Solutions - (et&L, #

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(1) (2) (3) Ho: P: .24 0: ffi3 : .28 P value: zPlh > .281p : .241 :2Pltr-+1 L - /a#ql :2PlZ > 2.0942701 : .0362 The proportion who put their refunds into savings has changed. ,\ I sr*'* il-' .J'"'* ' Probability and Statistics for Engineering Homework 10 Solutions Spring 2011 Hr p+.24 -* z. @) (s) ^t. '2q 6'*t ,r,,F f ,rr- I ijl" -reier* {a , *o.il +o -c1e*f llo
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Unformatted text preview: (et&L, # +;--'l.*i'l*+-':j$'-;:--i) z* : -i.880794 '; -)L v '-- _ * 1.880794 z** - 1.880794 b : '204077 (or you might call these numbers - z* and z*) : 1.880794 h*" : .275923 I \24lrt6) -V 5oo 0 : Pl.2o4o77 < fi < .zrsoz3 lp : .301 :rluryt<z<275923_ 3of L V,#' 1zl1-ury-l : Pl-4.090563 < Z < -I.1748371 : .t200...
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This document was uploaded on 05/15/2011.

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