quiz3BS-M1_f10 - Section M1 ECON 506 Section M1 Quiz 3...

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Section M1 Quiz 3 Version B ECON 506, Section M1 Solution NAME: ___Ali Toossi_________________ Quiz 3, Version B November 11 2010 NetID: ______________________________ Total points: 50 I. ( 7 points) Let 40 2 1 , , , X X X denote a random sample of size 40 from the uniform distribution U(0,1). Find ). 7 . 11 5 . 8 ( X P Solution: There is a typo. The question meant to ask to find ). 57 . 0 43 . 0 ( X P However if you do the following you will get the full point Note that 12 1 ) ( , 5 . 0 ) ( = = i i X V X E = < < = - - = ) 245 175 ( ) 480 1 5 . 0 7 . 11 480 1 5 . 0 5 . 8 ( ) 7 . 11 5 . 8 ( Z P Z P X P II. Let 40 2 1 , , , X X X denotes a random sample of size 40 from the Poisson distribution with = λ 4. Suppose X is the mean of this sample. Let 30 2 1 , , , Y Y Y denotes a random sample of size 30 from the standard normal distribution. Let 31 Y be another independent observation from the same population. (a) (5 points)
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quiz3BS-M1_f10 - Section M1 ECON 506 Section M1 Quiz 3...

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