Econ 162 Problem Set 10

Econ 162 Problem Set 10 - 1. Histograms of ( 29 50 2 1...

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Unformatted text preview: 1. Histograms of ( 29 50 2 1 ,..., , x x x and ( 29 50 2 1 ,..., , y y y X-Histogram 2 4 6 8 10 12 14 60 65 70 75 80 85 90 95 Score Frequency Y Histogram 5 10 15 20 25 30 60 65 70 75 Score Frequency 2. 160 . 79 _ = x 402 . 63 2 = x S 300 . 69 _ = y 806 . 11 2 = y S 3. - = - - 1 / 2 __ 2 z n X z P Confidence Interval: +- 2 __ 2 __ , z n X z n X +- 960 . 1 50 8 160 . 79 , 960 . 1 50 8 160 . 79 ( 29 377 . 81 , 943 . 76 4. ( 29 ( 29 - = - - -- 1 1 / 1 2 __ 2 n t n S X n t P Confidence Interval: ( 29 ( 29 - +-- n S n t X n S n t X 1 , 1 2 __ 2 __ +- 50 402 . 63 010 . 2 16 . 79 , 50 402 . 63 010 . 2 16 . 79 ( 29 423 . 81 , 897 . 76 Confidence Interval for 2 X : ( 29 ( 29 ( 29 - = - - -- 1 1 1 1 2 2 1 2 2 2 2 n S n n P X X ( 29 ( 29...
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This note was uploaded on 07/19/2008 for the course ECON 162 taught by Professor Taisukeotsu during the Fall '06 term at Yale.

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Econ 162 Problem Set 10 - 1. Histograms of ( 29 50 2 1...

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