23. Nolsy streets: How much noisier are streets wheré cars travelfaster? The following table presents noise levels in decibels andaverage speed in kilometers per hour for a sample of roads.SpeedNoise28.2678.136.2279.681.038.7329.0730.28:30.2529.0333.17Source: Journal of TransportationEngineering 125:152-15978.778.62.78.578.479.6a. Compute the least-squares regression line for predictingnoise level (v) from speed (x).b. Construct a 95% confidence interval for theslope.c. Test H P, =0 versus H: B, 0. Can you conclude thatspeed is useful in predicting noise level? Use the a = 0.01level of significance.24 ko.

(a) Use EXCEL to obtain the regression equation EXCEL procedure: Go to EXCEL Go to…

23. Nolsy streets: How much noisier are streets wheré cars travel faster? The following table presents noise levels in decibels and average speed in kilometers per hour for a sample of roads. Speed Noise 78.1 28.26 36.22 38.73 29.07 79.6 81.0 78.7 30.28 78.6 30.25 29.03 78.5 78.4 33.17 79.6 Source: Journal of Transportation Engineering 125:152-159 a. Compute the least-squares regression line for predicting noise level (y) from speed (x). b. Construct a 95% confidence interval for the slope. c. Test H: P speed is useful in predicting noise level? Use the a 0.01 level of significance. I O versus H: ,0. Can you conclude that

23. Nolsy streets: How much noisier are streets wheré cars travel faster? The following table presents noise levels in decibels and average speed in kilometers per hour for a sample of roads. Speed Noise 78.1 28.26 36.22 38.73 29.07 79.6 81.0 78.7 30.28 78.6 30.25 29.03 78.5 78.4 33.17 79.6 Source: Journal of Transportation Engineering 125:152-159 a. Compute the least-squares regression line for predicting noise level (y) from speed (x). b. Construct a 95% confidence interval for the slope. c. Test H: P speed is useful in predicting noise level? Use the a 0.01 level of significance. I O versus H: ,0. Can you conclude that

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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