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26 19 805 790 ion distributions are normal. 116 74 I for true average stance duration among elderly individuals. (Round your answers to one decimal place.) ms All ence, we can say that the true average stance duration among elderly individuals falls outside these values. ence, we can say that the true average stance duration among elderly individuals falls between these values. ence, we can say that the true average stance duration among elderly individuals falls below the lower bound. ence, we can say that the true average stance duration among elderly individuals falls above the upper bound. hypotheses at significance level 0.05 to decide whether true average stance duration is larger among elderly individuals than among younger individuals. (Us for younger individuale 1

26 19 805 790 ion distributions are normal. 116 74 I for true average stance duration among elderly individuals. (Round your answers to one decimal place.) ms All ence, we can say that the true average stance duration among elderly individuals falls outside these values. ence, we can say that the true average stance duration among elderly individuals falls between these values. ence, we can say that the true average stance duration among elderly individuals falls below the lower bound. ence, we can say that the true average stance duration among elderly individuals falls above the upper bound. hypotheses at significance level 0.05 to decide whether true average stance duration is larger among elderly individuals than among younger individuals. (Us for younger individuale 1

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
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The degenerative disease osteoarthritis most frequently affects weight-bearing joints such as the knee. An article presented the following summary data on stance duration (ms) for samples of both older and younger adults. Sample Size 26 19 USE SALT Age Older Younger Assume that both stance duration distributions are normal. A Sample Mean 805 790 (a) Calculate a 99% CI for true average stance duration among elderly individuals. (Round your answers to one decimal place.) ms Sample SD 116 74 Interpret your 99% CI. O With 99% confidence, we can say that the true average stance duration among elderly individuals falls outside these values. O With 99% confidence, we can say that the true average stance duration among elderly individuals falls between these values. With 99% confidence, we can say that the true average stance duration among elderly individuals falls below the lower bound. O With 99% confidence, we can say that the true average stance duration among elderly individuals falls above the upper bound. State the relevant hypotheses. о но Н1-H2=0 Hỷ thì kh2>0 (b) Carry out a test of hypotheses at significance level 0.05 to decide whether true average stance duration is larger among elderly individuals than among younger individuals. (Use ₁ for elderly individuals and ₂ for younger individuals.) оно: Н1-H2=0 Hai khi k2 < 0 оно 1-H2=0 H₂: H₁-H₂ #0 CHỏi thì t2=0 на: Н1 - H2 20
Transcribed Image Text:The degenerative disease osteoarthritis most frequently affects weight-bearing joints such as the knee. An article presented the following summary data on stance duration (ms) for samples of both older and younger adults. Sample Size 26 19 USE SALT Age Older Younger Assume that both stance duration distributions are normal. A Sample Mean 805 790 (a) Calculate a 99% CI for true average stance duration among elderly individuals. (Round your answers to one decimal place.) ms Sample SD 116 74 Interpret your 99% CI. O With 99% confidence, we can say that the true average stance duration among elderly individuals falls outside these values. O With 99% confidence, we can say that the true average stance duration among elderly individuals falls between these values. With 99% confidence, we can say that the true average stance duration among elderly individuals falls below the lower bound. O With 99% confidence, we can say that the true average stance duration among elderly individuals falls above the upper bound. State the relevant hypotheses. о но Н1-H2=0 Hỷ thì kh2>0 (b) Carry out a test of hypotheses at significance level 0.05 to decide whether true average stance duration is larger among elderly individuals than among younger individuals. (Use ₁ for elderly individuals and ₂ for younger individuals.) оно: Н1-H2=0 Hai khi k2 < 0 оно 1-H2=0 H₂: H₁-H₂ #0 CHỏi thì t2=0 на: Н1 - H2 20
With 99% confidence, we can say that the true average stance duration among elderly individuals falls outside these values. With 99% confidence, we can say that the true average stance duration among elderly individuals falls between these values. O With 99% confidence, we can say that the true average stance duration among elderly individuals falls below the lower bound. O With 99% confidence, we can say that the true average stance duration among elderly individuals falls above the upper bound. (b) Carry out a test of hypotheses at significance level 0.05 to decide whether true average stance duration is larger among elderly individuals than among younger individuals. (Use μ₁ for elderly individuals and ₂ for younger individuals.) State the relevant hypotheses. CHỏi thì t2 = 0 Hai thì t>0 © Hoi thi kh=0 H₂H₁ H₂ <0 Hỏi thì k = 0 Ha: H₁-₂0 Untitled Hoi thi H2 = 0 Hai thi - ky 20 Calculate the test statistic and determine the P-value. (Round your test statistic to one decimal place and your P-value to three decimal places.) t = P-value = State the conclusion in the problem context. Reject Ho. The data does not suggest that the true average stance duration is larger among elderly individuals than among younger individuals. O Reject Ho. The data suggests that the true average stance duration is larger among elderly individuals than among younger individuals. O Fail to reject Ho. The data suggests that the true average stance duration is larger among elderly individuals than among younger individuals. O Fail to reject Ho. The data does not suggest that the true average stance duration is larger among elderly individuals than among younger individuals.
Transcribed Image Text:With 99% confidence, we can say that the true average stance duration among elderly individuals falls outside these values. With 99% confidence, we can say that the true average stance duration among elderly individuals falls between these values. O With 99% confidence, we can say that the true average stance duration among elderly individuals falls below the lower bound. O With 99% confidence, we can say that the true average stance duration among elderly individuals falls above the upper bound. (b) Carry out a test of hypotheses at significance level 0.05 to decide whether true average stance duration is larger among elderly individuals than among younger individuals. (Use μ₁ for elderly individuals and ₂ for younger individuals.) State the relevant hypotheses. CHỏi thì t2 = 0 Hai thì t>0 © Hoi thi kh=0 H₂H₁ H₂ <0 Hỏi thì k = 0 Ha: H₁-₂0 Untitled Hoi thi H2 = 0 Hai thi - ky 20 Calculate the test statistic and determine the P-value. (Round your test statistic to one decimal place and your P-value to three decimal places.) t = P-value = State the conclusion in the problem context. Reject Ho. The data does not suggest that the true average stance duration is larger among elderly individuals than among younger individuals. O Reject Ho. The data suggests that the true average stance duration is larger among elderly individuals than among younger individuals. O Fail to reject Ho. The data suggests that the true average stance duration is larger among elderly individuals than among younger individuals. O Fail to reject Ho. The data does not suggest that the true average stance duration is larger among elderly individuals than among younger individuals.
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