In this problem, assume that the distribution of differences is approximately normal. Note: For degrees of freedom d.f. not in the Student's t table, use the dlosest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value by a small amount and therefore produce a slightly more "conservative" answer. at five weather stations on Trail Ridge Road in Rocky Mountain National Park, the peak wind gusts (in miles per hour) for January and April are recorded below. 2 3 4 5 120 126 64 78 102 88 61 Does this information indicate that the peak wind gusts are higher in January than in April? Use a - 0.01. (Let d- January - April.) Weather Station 1 January 135 104 111 April (a) What is the level of significance? State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or two-tailed test? O Hoi Ha- 0; H, H> 0; right-tailed O Hoi Ha- 0; H: M < 0; left-tailed O Hại Hg- 0; H, Hg 0; two-tailed O Hại Hg > 0; Hạ: Mg - 0; right-tailed (b) What sampling distribution will you use? What assumptions are you making? O The Student's t. We assume that d has an approximately normal distribution.
In this problem, assume that the distribution of differences is approximately normal. Note: For degrees of freedom d.f. not in the Student's t table, use the dlosest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value by a small amount and therefore produce a slightly more "conservative" answer. at five weather stations on Trail Ridge Road in Rocky Mountain National Park, the peak wind gusts (in miles per hour) for January and April are recorded below. 2 3 4 5 120 126 64 78 102 88 61 Does this information indicate that the peak wind gusts are higher in January than in April? Use a - 0.01. (Let d- January - April.) Weather Station 1 January 135 104 111 April (a) What is the level of significance? State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or two-tailed test? O Hoi Ha- 0; H, H> 0; right-tailed O Hoi Ha- 0; H: M < 0; left-tailed O Hại Hg- 0; H, Hg 0; two-tailed O Hại Hg > 0; Hạ: Mg - 0; right-tailed (b) What sampling distribution will you use? What assumptions are you making? O The Student's t. We assume that d has an approximately normal distribution.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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In this problem, assume that the distribution of differences is approximately normal. Note: For degrees of freedom d.f. not in the Student's t table, use the closest d.f. that is smaller. In some situations, this choice of d.f. may increase the P-value by a small amount and therefore produce a slightly more "conservative" answer.
I need help with sketchng the distribution, (d) and (e)
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