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A journal article reports that a sample of size 5 was used as a basis for calculating a 95% CI for the true average natural frequency (Hz) of delaminated beams of a certain type. The resulting interval was (229.267, 233.001). You decide that a confidence level of 99% is more appropriate than the 95% level used. What are the limits of the 99% interval? [Hint: Use the center of the interval and its width to determine x and s.] (Round your answers to three decimal places.) USE SALT Hz

A journal article reports that a sample of size 5 was used as a basis for calculating a 95% CI for the true average natural frequency (Hz) of delaminated beams of a certain type. The resulting interval was (229.267, 233.001). You decide that a confidence level of 99% is more appropriate than the 95% level used. What are the limits of the 99% interval? [Hint: Use the center of the interval and its width to determine x and s.] (Round your answers to three decimal places.) USE SALT Hz

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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**Confidence Interval Calculation for Delaminated Beams' Natural Frequency** A journal article reports that a sample of size 5 was used to calculate a 95% Confidence Interval (CI) for the true average natural frequency (Hz) of delaminated beams of a certain type. The resulting interval was \( \left( 229.267, 233.001 \right) \). You decide that a confidence level of 99% is more appropriate than the 95% level used. What are the limits of the 99% interval? *(Hint: Use the center of the interval and its width to determine x̄ and s.)* (Round your answers to three decimal places.) ![Use SALT Button]("USE SALT") \[ \left( \_\_\_\_\_\_\_ , \_\_\_\_\_\_\_ \right) \text{ Hz} \]
Transcribed Image Text:**Confidence Interval Calculation for Delaminated Beams' Natural Frequency** A journal article reports that a sample of size 5 was used to calculate a 95% Confidence Interval (CI) for the true average natural frequency (Hz) of delaminated beams of a certain type. The resulting interval was \( \left( 229.267, 233.001 \right) \). You decide that a confidence level of 99% is more appropriate than the 95% level used. What are the limits of the 99% interval? *(Hint: Use the center of the interval and its width to determine x̄ and s.)* (Round your answers to three decimal places.) ![Use SALT Button]("USE SALT") \[ \left( \_\_\_\_\_\_\_ , \_\_\_\_\_\_\_ \right) \text{ Hz} \]
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