Exhibit 8-3A random sample of 81 automobiles traveling on a section of an interstate showedan average speed of 60 mph. The distribution of speeds of all cars on this section ofhighway is normally distributed, with a standard deviation of 13.5 mph.4. Refer to Exhibit 8-3. The 86.9% confidence interval for u isO 46.500 to 73.50057.735 to 62.26559.131 to 60.86950 to 70

4. The given sample size is 81, sample mean is 60 mph, and population standard deviation is 13.5…

Answered: 4. Refer to Exhibit 8-3. The 86.9%…

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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4. Refer to Exhibit 8-3. The 86.9% confidence interval for µ is 46.500 to 73.500 57.735 to 62.265 59.131 to 60.869 50 to 70