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April 5, 2017 | Mathematicsematical Statistics | By admin | 0 Comments

By Carl Erik Sarndal, et. al

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3! ). 3! com 55 Statistics – Exercises Solutions Therefore, we can reject H0 at significance level 5%. Solution of Problem 66. We have to use Wilcoxon’s test for 1 set of observations. First we calculate the differences di = xi − yi and assign a rank to each of them: Plant no. 5 10 1 4 3 6 Note: Since no. 3 and no. 5 have the same numerical value, they were both given the average rank. 5. At this point we can check that t+ + t− = 55 = 10 · (10 + 1)/2 which shows that we have computed correctly. If the pesticide has had an effect, the di ’s should be mainly positive.

465817912560. 15! Solution of Problem 14. The distribution function F is a step function given by ⎧ ⎪ for x < 1 ⎪ ⎪0 ⎪ ⎪ ⎪ ⎪ 1/6 for 1 ≤ x < 2 ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ ⎨2/6 for 2 ≤ x < 3 F (x) = 3/6 for 3 ≤ x < 4 ⎪ ⎪ ⎪ ⎪ 4/6 for 4 ≤ x < 5 ⎪ ⎪ ⎪ ⎪ ⎪ ⎪ 5/6 for 5 ≤ x < 6 ⎪ ⎪ ⎪ ⎩1 for x ≥ 6 Solution of Problem 15. The distribution function F is the continuous function given by ⎧ ⎪ ⎪ ⎨0 for x < 0 F (x) = x for 0 ≤ x ≤ 1 ⎪ ⎪ ⎩1 for x > 1 Solution of Problem 16. X takes values in the set {2, 3, 4, . . , 12}. com 34 Statistics – Exercises Solutions Y takes values in the set {−5, −4, .

A 2 × 2 table. In total, there are N = 223 observations. 9. 20. 20) ≈ 20% where have used the χ2 -distribution with df = 1 degree of freedom. Since P is greater than 5%, we cannot detect any regional dependency in the opinion poll. Solution of Problem 64. Sharp Minds - Bright Ideas! Please click the advert Employees at FOSS Analytical A/S are living proof of the company value - First - using new inventions to make dedicated solutions for our customers. With sharp minds and cross functional teamwork, we constantly strive to develop new unique products Would you like to join our team?

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