HelpSubmitSave & ExitThe mean weight of trucks traveling on a particular section of I-475 is not known. A state highway inspector needs to estimate the populationmean. He selects and weighs a random sample of 49 trucks. The mean weight of the 49 trucks was 15.8 tons. Assume for purposes of thisproblem that the population standard deviation is known, and it is 3.8 tons. What is the 95% confidence interval for the population mean?Multiple Choice14.7 and 16.913.2 and 17.610.0 and 20.016.1 and 18.1McGrawHillEdecationNext4 of 10< Prev415 AMType here to search11/17/2019

Confidence interval:The (1-α) % confidence interval for population mean µ, when σ is known is given…

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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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Assume that population mean is to be estimated from the sample described. Use the sample results to approximate the margin of error and 95% confidence interval. n=49, x=55.1 seconds, s=4.8 seconds The margin of error is nothing seconds.
Please assist with a,b,c C. Is the p value greater than or lesser than the level of significance? Is there enough evidence to support the claim?
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