# Lecture 6 - Today's Office Hours Extended 1:30-3:30 PM in...

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Today’s Office Hours Extended: 1:30-3:30 PM in CII 5015

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TA Office Hours: Vadiraj Hombal: Thursdays 4:30-6:30 PM JEC 6027 Max Henderson: Sundays 4:00-7:00 PM McNeil Room Scott Alderman: Tue/Thur: 5:00-7:00 PM MRC 318 Li Huijiang ( [email protected] ): TBA
Problem 4-32 (page 154) Illustration of normal distribution calculations, use table from the appendix and note table “formatting” Problem 4-47 (page 156) Illustration of normal distribution calculations and percentiles

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4-32 ) 10 , 80 ( ~ = = σ μ N X 9772 . 0 ) 2 ( 2 10 80 100 = = = = z P z x Standard Normal Table (draw the “picture”) = 100 0 ) ( ) 100 ( ) dx x f x p a
4-32 5 . 0 ) 80 ( ) = x P b ) 80 65 ( ) x P c 433 . 0 067 . 0 5 . 0 ) 65 ( ) 80 ( = = x P x P

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) (70 ) ( 70) 1 ( 70) dP x P x Px ≤= =− ) 90 70 ( ) 10 | 80 (| ) ) 85 ( ) 95 ( ) 95 85 ( ) = = x P x P f x P x P x P e
4-47 ) 5 . 3 , 12 ( ~ N X 99 . 0 ) 1 ( = c x P 1 2.33 20.14 21.14 c c μ σ −= + = = c such 99% of parcels are at least 1# less

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Problem 4-58 (page 157) Illustration of approximations to the standard normal distribution
4-58 165 703 562 ) 351 83 ( 5 . 0 ) ( 1 + + + = Φ z z z e z z Approximation NORMDIST -4 40.25 1 -3 2.267 0.999 -2 0.977 0.977 -1 0.795 0.841 00 . 5 0 . 5 1 0.137 0.159 2 0.01 0.023

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## This note was uploaded on 04/08/2008 for the course ENGR 2600 taught by Professor Malmborg during the Spring '08 term at Rensselaer Polytechnic Institute.

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Lecture 6 - Today's Office Hours Extended 1:30-3:30 PM in...

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