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 December 3rd, 2012, 06:54 PM #1 Newbie   Joined: Dec 2012 Posts: 9 Thanks: 0 multiple choice question A s u r v e y c l a i m s t h a t 9 o u t o f 1 0 d o c t o r s ( i . e . , 9 0 % ) r e c o m m e n d b r a n d Z f o r t h e i r p a t i e n t s w h o h a v e c h i l d r e n . T o t e s t t h i s c l a i m a g a i n s t t h e a l t e r n a t i v e t h a t t h e a c t u a l p r o p o r t i o n o f d o c t o r s w h o r e c o mm e n d br a n d Z is le ss t h a n 9 0 %, a r a n d om s a m p l e o f d oc tor s w a s t a ke n. S up p os e th e t e s t s ta ti st ic i s z = -1.75. Ca n we c on c lu d e t ha t H0 should be rejected at the a ) ? = . 10 , b ) ? = . 05 , and c ) ? = . 01 level? A ) a ) n o ; b ) n o; c ) y e s B ) a ) y e s ; b ) ye s; c ) n o C ) a ) n o; b ) n o; c ) n o D ) a ) y e s ; b ) ye s; c ) y e s

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