ex2_f09 - STA 6166 Exam 2 Fall 2009 PRINT Name...

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Unformatted text preview: STA 6166 Exam 2 Fall 2009 PRINT Name ______________________ Researchers wished to compare the yields (in pounds) of 3 varieties of 4-year old orange trees in an orchard. They obtain random samples of 10 trees of each variety from the orchard and obtain the following results. Due to the skew of the distributions, they choose to use the appropriate non-parametric test. Yld(Lbs) Rank Variety1 Variety2 Variety3 Variety1 Variety2 Variety3 0.53 0.03 1.97 6 1 13 1.24 4.86 1.07 9 26 8 2.51 5.51 0.53 16 27 5 2.08 3.75 2.91 14 22 19 5.64 0.52 1.75 28 4 11 2.15 0.91 4.46 15 7 25 0.14 1.76 3.05 2 12 21 13.42 0.42 12.08 30 3 29 2.71 2.77 1.62 17 18 10 2.95 3.86 4.31 20 23 24 Sum 157 143 165 Give the test statistic for testing H : Variety Medians all equal versus H A : Variety Means not all equal We reject H at the =0.05 significance level if it falls in what range __________________ The P-value for this test is greater than / less than 0.05 (circle correct answer)....
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This note was uploaded on 06/04/2011 for the course STA 6166 taught by Professor Staff during the Fall '08 term at University of Florida.

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ex2_f09 - STA 6166 Exam 2 Fall 2009 PRINT Name...

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