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The circumference of a particular species of tree was thought to be different depending on certain geographical factors. An SRS of 60 trees is selected in Sequoyah National Forrest, where it is found that ₁ = 6 meters with a standard deviation s1 = 3 meters. A second SRS of size 41 is independently selected in Yellowstone National Forrest, and it is found that ₂ = 4 meters with a standard deviation 82 = 2 meters. Let μ₁ and μ₂ represent, respectively, the true mean circumferences of this particular species of tree. Assume the two-sample t-procedures are safe to use. A 95% t-confidence interval for O2±0.97 O2±0.84 O 2 ± 1.01 O 2 ± 1.35 F₁-F₂ is (use conservative degrees of freedom)

The circumference of a particular species of tree was thought to be different depending on certain geographical factors. An SRS of 60 trees is selected in Sequoyah National Forrest, where it is found that ₁ = 6 meters with a standard deviation s1 = 3 meters. A second SRS of size 41 is independently selected in Yellowstone National Forrest, and it is found that ₂ = 4 meters with a standard deviation 82 = 2 meters. Let μ₁ and μ₂ represent, respectively, the true mean circumferences of this particular species of tree. Assume the two-sample t-procedures are safe to use. A 95% t-confidence interval for O2±0.97 O2±0.84 O 2 ± 1.01 O 2 ± 1.35 F₁-F₂ is (use conservative degrees of freedom)

MATLAB: An Introduction with Applications
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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Suppose the researcher had wished to test the following hypotheses. Ho: H1 H2 vs. Ha: 1 * 2 Based on the confidence interval you obtained early, O a. we would reject the null hypothesis of no difference at the 0.05 level. O both a and b are correct. O neither a nor b is correct. O b. the P-value is less than 0.05.
Transcribed Image Text:Suppose the researcher had wished to test the following hypotheses. Ho: H1 H2 vs. Ha: 1 * 2 Based on the confidence interval you obtained early, O a. we would reject the null hypothesis of no difference at the 0.05 level. O both a and b are correct. O neither a nor b is correct. O b. the P-value is less than 0.05.
The circumference of a particular species of tree was thought to be different depending on certain geographical factors. An SRS of 60 trees is selected in Sequoyah National Forrest, where it is found that ₁ = 6 meters with a standard deviation s₁ = 3 meters. A second SRS of size 41 is independently selected in Yellowstone National Forrest, and it is found that 2 = 4 meters with a standard deviation s₂ = 2 meters. Let u₁ and M₂ represent, respectively, the true mean circumferences of this particular species of tree. Assume the two-sample t-procedures are safe to use. A 95% t-confidence interval for O2±0.97 O2±0.84 O 2 ± 1.01 O 2 ± 1.35 на - На is (use conservative degrees of freedom)
Transcribed Image Text:The circumference of a particular species of tree was thought to be different depending on certain geographical factors. An SRS of 60 trees is selected in Sequoyah National Forrest, where it is found that ₁ = 6 meters with a standard deviation s₁ = 3 meters. A second SRS of size 41 is independently selected in Yellowstone National Forrest, and it is found that 2 = 4 meters with a standard deviation s₂ = 2 meters. Let u₁ and M₂ represent, respectively, the true mean circumferences of this particular species of tree. Assume the two-sample t-procedures are safe to use. A 95% t-confidence interval for O2±0.97 O2±0.84 O 2 ± 1.01 O 2 ± 1.35 на - На is (use conservative degrees of freedom)
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