The average speed of 64 random cars traveling on a certain highway was 80 km/h andthe sample standard deviation was 20 km/h. What is the margin of error with a 98% levelof confidence for the population average speed?Select one:а. 1.295b. 2.387C. 6.64d. 3.2375е. 2.656f. 5.9675

We have given that, Average speed (x̄) = 80 , standard deviation (s) = 20, Confidence level(C.I)…

Answered: The average speed of 64 random cars…

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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The average speed of 64 random cars traveling on a certain highway was 80 km/h and the sample standard deviation was 20 km/h. What is the margin of error with a 98% level of confidence for the population average speed? Select one: а. 1.295 b. 2.387 C. 6.64 d. 3.2375 е. 2.656 f. 5.9675