HW#9 - HW#9 Oct 30, 2006 1) Variable Mean C1 100.34 C2...

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Unformatted text preview: HW#9 Oct 30, 2006 1) Variable Mean C1 100.34 C2 88.77 C3 99.60 C4 101.52 C5 107.87 C6 97.96 C7 97.09 C8 96.96 C9 105.01 C10 108.11 Variable Variance C1 1078.96 C2 717.10 C3 905.96 C4 1104.19 C5 1037.43 C6 1004.52 C7 1094.49 C8 1308.71 C9 759.98 C10 933.23 C1 160 140 120 100 80 60 40 Dotplot of C1 2a) Sample Averages Frequency 107.5 105.0 102.5 100.0 97.5 95.0 92.5 90.0 3.0 2.5 2.0 1.5 1.0 0.5 0.0 Histogram of Sample Averages 2b) 2 2 2 2 [ ] [ ] 100 30 [ ] [ ] 36 (6) 25 A A E A E X Var A Var X n = = = = = = = = = = 2c) Variable Mean Sample Averages 100.32 Variable Variance Sample Averages 33.59 (5.80) 2 2d) Expected values are theoretical, which have a 0% probability of being the actual results exactly. 3a) 2 2 2 4 4 2 [ ] 30 900 2 2(900) [ ] 67,500 1 25 1 E S Var S n = = = = = =-- 3b) Sample Variances Frequency 1300 1200 1100 1000 900 800 700 3.0 2.5 2.0 1.5 1.0 0.5 0.0 Histogram of Sample Variances 3c) Variable Mean Sample Variances 994.8 Variable Variance Sample Variances 30317.3 4a)...
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HW#9 - HW#9 Oct 30, 2006 1) Variable Mean C1 100.34 C2...

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