Unformatted text preview: 5.28 Let A denote being audited. Let I denote income level. a) P(A|I<25,000)=P(A and I<25,000)/P(I<25,000)=.0011/(.0011+.1747) b) P(I<25,000|A)= P(A and I<25,000)/P(A)=.0011/(.001+.0009+.0009+.0011) 5.35 Let M be male, F be female, VH be very happy, NH be not too happy. a) P(H)=370/603 b) i)P(VH|M)=211/325 ii)P(VH|F)=149/278 Extra problem ME=1/sqrt(1000)=.0316 where sqrt=square root We are confident that the true proportion will lie between (.59-.0316, .59+.0316)=(.5584, .6216)...
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This note was uploaded on 02/04/2009 for the course STATISTIC 3011 taught by Professor Sally during the Spring '08 term at University of Minnesota Crookston.
- Spring '08