CEE_110_PS1_08_Solutions

CEE_110_PS1_08_Solutions - comparatively harder to deliver...

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UNIVERSITY OF CALIFORNIA, LOS ANGELES Civil and Environmental Engineering Department CEE 110 Introduction to Probability and Statistics for Engineers Spring Quarter 2008 M-W 2-4 PM 3400 Boelter Hall Prof. K. D. Stolzenbach 5732J Boelter Hall, 206-7624 stolzenb@ucla.edu Problem Set 1 Solutions ___________________________________________________________________________ 1. 2. This is an instance of Simpson's Paradox, because the overall late delivery rates are unfair averages. Boxes R Us delivers a greater percentage of its packages Overnight, where it is
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Unformatted text preview: comparatively harder to deliver on time. Pack Rats delivers many Regular packages, where it is easier to make an on-time delivery . 3. Median = 16.5; Q1 = 10; Q3 = 30; IQR = Q3 Q1 = 30 -10 = 20; lower fence = Q1 1.5 IQR = 10 30 = - 20; upper fence = Q3 + 1.5 IQR = 30 + 30 = 60 4. a) b) c) d) e) f) The histogram would be skewed to the right (towards the high values....
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CEE_110_PS1_08_Solutions - comparatively harder to deliver...

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