Step 6: Create a 98% confidence interval for the difference in time to descend 800 ft. The t critical value for this confidence interval based on 25 degrees of freedom and rounded to three decimal places is 2.485 Lower limit (rounded to two decimal places) is Upper limit (rounded to two decimal places) is Based on this analysis, we are 98 % confident that the actual difference in time to descend 800 ft is somewhere between 10 X and seconds. Because both endpoints of the interval are positive, this indicates that the mean time to descend 800 ft when the propeller is stopped ✔ is greater than when the propeller is windmilling ✔ . In conclusion, if a single-propeller-driven airplane experiences engine failure, there is a greater likelihood of longer glide expected if the propeller is forced to stop
Step 6: Create a 98% confidence interval for the difference in time to descend 800 ft. The t critical value for this confidence interval based on 25 degrees of freedom and rounded to three decimal places is 2.485 Lower limit (rounded to two decimal places) is Upper limit (rounded to two decimal places) is Based on this analysis, we are 98 % confident that the actual difference in time to descend 800 ft is somewhere between 10 X and seconds. Because both endpoints of the interval are positive, this indicates that the mean time to descend 800 ft when the propeller is stopped ✔ is greater than when the propeller is windmilling ✔ . In conclusion, if a single-propeller-driven airplane experiences engine failure, there is a greater likelihood of longer glide expected if the propeller is forced to stop
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 57E: What is an experiment? Give two examples.
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step 6
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Step 1
Given that:
Confidence level=98%
Sample mean of differences,
Standard error of mean,
Degrees of freedom, df=25
To find: 98% confidence interval for the difference in time to descend 800ft.
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