A trainer wanted to see if her new training regimen was effective in reducing the time it took to finish a particular obstacle course. The general public finishes it in 49 seconds with a standard deviation of 12. After testing 64 of her clients, they run the obstacle course in 41 seconds. Was the effective in reducing the time? What is the z statistic? For a one tailed test at .05 significance, the critical value is 1.65. What decision do we make? What is the effect size? (M-μ/σ)
A trainer wanted to see if her new training regimen was effective in reducing the time it took to finish a particular obstacle course. The general public finishes it in 49 seconds with a standard deviation of 12. After testing 64 of her clients, they run the obstacle course in 41 seconds. Was the effective in reducing the time? What is the z statistic? For a one tailed test at .05 significance, the critical value is 1.65. What decision do we make? What is the effect size? (M-μ/σ)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A trainer wanted to see if her new training regimen was effective in reducing the time it took to finish a particular obstacle course. The general public finishes it in 49 seconds with a standard deviation of 12. After testing 64 of her clients, they run the obstacle course in 41 seconds. Was the effective in reducing the time?
- What is the z statistic?
- For a one tailed test at .05 significance, the critical value is 1.65. What decision do we make?
- What is the effect size? (M-μ/σ)
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