Basic Statistical Method - Quiz 3 | ISYE 2028, Quizzes of Data Analysis & Statistical Methods

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% ' fay! /0 (— \ IsyE2028B Xiaoming Huo Friday, 9/7/2001 Namex_ggiiiMMMMMMM: Qu 1. Suppose we know the values of the following critical points: Xbo118 = 30.578, to.os,21 = 1.7207, Fo.1035 = 3.6195. Judge if the following statements are true or not. Give a graphical expla- nation as I did in class. (a) @ points) We have a random variable X ~ y?, and P{X < 31} > 3 O88. te ee given trek He G10 THe Cribs) eink is 36.998, . $0'@ OLX >Se.5 we} +0.01 TH fallews hed PLRABAG 6 O-Od grace BV is KOR OK of BOS AW on Wa AB. | OLY SAG ~ Le PL eB = \- Crm les than o 20.99. (b) (3 points) We have a random variable X ~ Re) <18}> 3 oes 3X 2192094: 0.05 Ae ey AA.42034 me be 1.8 is lergor then V2 & includes Ger ® a ulkidk inertage We arcs under He graph. Since @ 44 is already greater Bhan cue oe an of oO! S Orne ny geeodee Yan 0.45 MMIC Fae. Gaey (c) G points) [tricky] We have a random variable X ~ Fs and P{|X| < 0.05 403 y. 3} > 0.90. Cx rs.ciegh 2O.1 and 34 3.615 50 There (6 lesg area 40 ndvde vader Aba grap - wy. awe Fer Ne han Xo be Var incel * yes pose}e sox to . Ls oppose e a enough Fer TH ko Ne phe se, wae Wo MOS Pranieaty gente eye 341455 Aen For ees 4 i, 0.45 oul 3 fal